The early development of the hypoglossal nerve and occipital somites in staged human embryos
Serial sections of 105 human embryos (including 20 silver preparations) from stage 11 (24 days) to stage 22 (54 days) were studied, and 23 graphic reconstructions were prepared. The hypoglossal nucleus is evident at stage 12 and becomes isolated from other efferent nuclei at stage 14. The first hypo...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
|---|
| Format: |
E-Artikel |
|---|---|
| Sprache: |
Englisch |
| Erschienen: |
1984 |
|---|
| Umfang: |
14 Ill. ; 1 Tab. 21 |
|---|
| Reproduktion: |
Wiley InterScience Backfile Collection 1832-2000 |
|---|---|
| Übergeordnetes Werk: |
in: American Journal of Anatomy - New York, NY [u.a.] : Wiley, 169(1984) vom: März, Seite 237-257 |
| Übergeordnetes Werk: |
volume:169 ; year:1984 ; month:03 ; pages:237-257 ; extent:21 |
| Links: |
|---|
| Katalog-ID: |
NLEJ160633494 |
|---|
| LEADER | 01000caa a22002652 4500 | ||
|---|---|---|---|
| 001 | NLEJ160633494 | ||
| 003 | DE-627 | ||
| 005 | 20210707041926.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 070201s1984 xx |||||o 00| ||eng c | ||
| 035 | |a (DE-627)NLEJ160633494 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
| 041 | |a eng | ||
| 245 | 1 | 0 | |a The early development of the hypoglossal nerve and occipital somites in staged human embryos |
| 264 | 1 | |c 1984 | |
| 300 | |b 14 Ill. |b 1 Tab. | ||
| 300 | |a 21 | ||
| 336 | |a nicht spezifiziert |b zzz |2 rdacontent | ||
| 337 | |a nicht spezifiziert |b z |2 rdamedia | ||
| 338 | |a nicht spezifiziert |b zu |2 rdacarrier | ||
| 520 | |a Serial sections of 105 human embryos (including 20 silver preparations) from stage 11 (24 days) to stage 22 (54 days) were studied, and 23 graphic reconstructions were prepared. The hypoglossal nucleus is evident at stage 12 and becomes isolated from other efferent nuclei at stage 14. The first hypoglossal nerve fibers appear at stage 12. The roots unite at stage 14 and the main trunk arrives in the tongue at stage 15. Four occipital somites can be identified during stage 13, and the sclerotomic material forms two bilateral masses. The fourth sclerotome separates in stage 14 and develops like a vertebra. This and the remaining sclerotomic material form the basioccipital and exoccipital parts of the chondrocranium, which are the first to appear. Four occipital myotomes develop and grow towards the tongue as the “hypoglossal cord”, which arrives prior to the hypoglossal nerve. The developmental similarity in the hypoglossal region between birds and mammals, combined with experimental studies in birds, renders it extremely likely that the hypoglossal musculature in mammals also is derived from occipital somites. The present study is the first in which this conclusion is adequately supported in the human. This investigation aids in the interpretation and timing of origin of variations (e.g., bipartite hypoglossal canal) and anomalies (e.g., persistent hypoglossal artery). | ||
| 533 | |f Wiley InterScience Backfile Collection 1832-2000 | ||
| 700 | 1 | |a O'Rahilly, Ronan |4 oth | |
| 700 | 1 | |a Müller, Fabiola |4 oth | |
| 773 | 0 | 8 | |i in |t American Journal of Anatomy |d New York, NY [u.a.] : Wiley |g 169(1984) vom: März, Seite 237-257 |w (DE-627)NLEJ159070953 |w (DE-600)2202735-X |x 0002-9106 |7 nnns |
| 773 | 1 | 8 | |g volume:169 |g year:1984 |g month:03 |g pages:237-257 |g extent:21 |
| 856 | 4 | 0 | |u http://dx.doi.org/10.1002/aja.1001690302 |q text/html |z Deutschlandweit zugänglich |
| 912 | |a GBV_USEFLAG_U | ||
| 912 | |a ZDB-1-WIS | ||
| 912 | |a GBV_NL_ARTICLE | ||
| 951 | |a AR | ||
| 952 | |d 169 |j 1984 |c 3 |h 237-257 |g 21 | ||
| matchkey_str |
article:00029106:1984----::heryeeomnoteyolsanrenocptloi |
|---|---|
| hierarchy_sort_str |
1984 |
| publishDate |
1984 |
| allfields |
(DE-627)NLEJ160633494 DE-627 ger DE-627 rakwb eng The early development of the hypoglossal nerve and occipital somites in staged human embryos 1984 14 Ill. 1 Tab. 21 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Serial sections of 105 human embryos (including 20 silver preparations) from stage 11 (24 days) to stage 22 (54 days) were studied, and 23 graphic reconstructions were prepared. The hypoglossal nucleus is evident at stage 12 and becomes isolated from other efferent nuclei at stage 14. The first hypoglossal nerve fibers appear at stage 12. The roots unite at stage 14 and the main trunk arrives in the tongue at stage 15. Four occipital somites can be identified during stage 13, and the sclerotomic material forms two bilateral masses. The fourth sclerotome separates in stage 14 and develops like a vertebra. This and the remaining sclerotomic material form the basioccipital and exoccipital parts of the chondrocranium, which are the first to appear. Four occipital myotomes develop and grow towards the tongue as the “hypoglossal cord”, which arrives prior to the hypoglossal nerve. The developmental similarity in the hypoglossal region between birds and mammals, combined with experimental studies in birds, renders it extremely likely that the hypoglossal musculature in mammals also is derived from occipital somites. The present study is the first in which this conclusion is adequately supported in the human. This investigation aids in the interpretation and timing of origin of variations (e.g., bipartite hypoglossal canal) and anomalies (e.g., persistent hypoglossal artery). Wiley InterScience Backfile Collection 1832-2000 O'Rahilly, Ronan oth Müller, Fabiola oth in American Journal of Anatomy New York, NY [u.a.] : Wiley 169(1984) vom: März, Seite 237-257 (DE-627)NLEJ159070953 (DE-600)2202735-X 0002-9106 nnns volume:169 year:1984 month:03 pages:237-257 extent:21 http://dx.doi.org/10.1002/aja.1001690302 text/html Deutschlandweit zugänglich GBV_USEFLAG_U ZDB-1-WIS GBV_NL_ARTICLE AR 169 1984 3 237-257 21 |
| spelling |
(DE-627)NLEJ160633494 DE-627 ger DE-627 rakwb eng The early development of the hypoglossal nerve and occipital somites in staged human embryos 1984 14 Ill. 1 Tab. 21 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Serial sections of 105 human embryos (including 20 silver preparations) from stage 11 (24 days) to stage 22 (54 days) were studied, and 23 graphic reconstructions were prepared. The hypoglossal nucleus is evident at stage 12 and becomes isolated from other efferent nuclei at stage 14. The first hypoglossal nerve fibers appear at stage 12. The roots unite at stage 14 and the main trunk arrives in the tongue at stage 15. Four occipital somites can be identified during stage 13, and the sclerotomic material forms two bilateral masses. The fourth sclerotome separates in stage 14 and develops like a vertebra. This and the remaining sclerotomic material form the basioccipital and exoccipital parts of the chondrocranium, which are the first to appear. Four occipital myotomes develop and grow towards the tongue as the “hypoglossal cord”, which arrives prior to the hypoglossal nerve. The developmental similarity in the hypoglossal region between birds and mammals, combined with experimental studies in birds, renders it extremely likely that the hypoglossal musculature in mammals also is derived from occipital somites. The present study is the first in which this conclusion is adequately supported in the human. This investigation aids in the interpretation and timing of origin of variations (e.g., bipartite hypoglossal canal) and anomalies (e.g., persistent hypoglossal artery). Wiley InterScience Backfile Collection 1832-2000 O'Rahilly, Ronan oth Müller, Fabiola oth in American Journal of Anatomy New York, NY [u.a.] : Wiley 169(1984) vom: März, Seite 237-257 (DE-627)NLEJ159070953 (DE-600)2202735-X 0002-9106 nnns volume:169 year:1984 month:03 pages:237-257 extent:21 http://dx.doi.org/10.1002/aja.1001690302 text/html Deutschlandweit zugänglich GBV_USEFLAG_U ZDB-1-WIS GBV_NL_ARTICLE AR 169 1984 3 237-257 21 |
| allfields_unstemmed |
(DE-627)NLEJ160633494 DE-627 ger DE-627 rakwb eng The early development of the hypoglossal nerve and occipital somites in staged human embryos 1984 14 Ill. 1 Tab. 21 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Serial sections of 105 human embryos (including 20 silver preparations) from stage 11 (24 days) to stage 22 (54 days) were studied, and 23 graphic reconstructions were prepared. The hypoglossal nucleus is evident at stage 12 and becomes isolated from other efferent nuclei at stage 14. The first hypoglossal nerve fibers appear at stage 12. The roots unite at stage 14 and the main trunk arrives in the tongue at stage 15. Four occipital somites can be identified during stage 13, and the sclerotomic material forms two bilateral masses. The fourth sclerotome separates in stage 14 and develops like a vertebra. This and the remaining sclerotomic material form the basioccipital and exoccipital parts of the chondrocranium, which are the first to appear. Four occipital myotomes develop and grow towards the tongue as the “hypoglossal cord”, which arrives prior to the hypoglossal nerve. The developmental similarity in the hypoglossal region between birds and mammals, combined with experimental studies in birds, renders it extremely likely that the hypoglossal musculature in mammals also is derived from occipital somites. The present study is the first in which this conclusion is adequately supported in the human. This investigation aids in the interpretation and timing of origin of variations (e.g., bipartite hypoglossal canal) and anomalies (e.g., persistent hypoglossal artery). Wiley InterScience Backfile Collection 1832-2000 O'Rahilly, Ronan oth Müller, Fabiola oth in American Journal of Anatomy New York, NY [u.a.] : Wiley 169(1984) vom: März, Seite 237-257 (DE-627)NLEJ159070953 (DE-600)2202735-X 0002-9106 nnns volume:169 year:1984 month:03 pages:237-257 extent:21 http://dx.doi.org/10.1002/aja.1001690302 text/html Deutschlandweit zugänglich GBV_USEFLAG_U ZDB-1-WIS GBV_NL_ARTICLE AR 169 1984 3 237-257 21 |
| allfieldsGer |
(DE-627)NLEJ160633494 DE-627 ger DE-627 rakwb eng The early development of the hypoglossal nerve and occipital somites in staged human embryos 1984 14 Ill. 1 Tab. 21 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Serial sections of 105 human embryos (including 20 silver preparations) from stage 11 (24 days) to stage 22 (54 days) were studied, and 23 graphic reconstructions were prepared. The hypoglossal nucleus is evident at stage 12 and becomes isolated from other efferent nuclei at stage 14. The first hypoglossal nerve fibers appear at stage 12. The roots unite at stage 14 and the main trunk arrives in the tongue at stage 15. Four occipital somites can be identified during stage 13, and the sclerotomic material forms two bilateral masses. The fourth sclerotome separates in stage 14 and develops like a vertebra. This and the remaining sclerotomic material form the basioccipital and exoccipital parts of the chondrocranium, which are the first to appear. Four occipital myotomes develop and grow towards the tongue as the “hypoglossal cord”, which arrives prior to the hypoglossal nerve. The developmental similarity in the hypoglossal region between birds and mammals, combined with experimental studies in birds, renders it extremely likely that the hypoglossal musculature in mammals also is derived from occipital somites. The present study is the first in which this conclusion is adequately supported in the human. This investigation aids in the interpretation and timing of origin of variations (e.g., bipartite hypoglossal canal) and anomalies (e.g., persistent hypoglossal artery). Wiley InterScience Backfile Collection 1832-2000 O'Rahilly, Ronan oth Müller, Fabiola oth in American Journal of Anatomy New York, NY [u.a.] : Wiley 169(1984) vom: März, Seite 237-257 (DE-627)NLEJ159070953 (DE-600)2202735-X 0002-9106 nnns volume:169 year:1984 month:03 pages:237-257 extent:21 http://dx.doi.org/10.1002/aja.1001690302 text/html Deutschlandweit zugänglich GBV_USEFLAG_U ZDB-1-WIS GBV_NL_ARTICLE AR 169 1984 3 237-257 21 |
| allfieldsSound |
(DE-627)NLEJ160633494 DE-627 ger DE-627 rakwb eng The early development of the hypoglossal nerve and occipital somites in staged human embryos 1984 14 Ill. 1 Tab. 21 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Serial sections of 105 human embryos (including 20 silver preparations) from stage 11 (24 days) to stage 22 (54 days) were studied, and 23 graphic reconstructions were prepared. The hypoglossal nucleus is evident at stage 12 and becomes isolated from other efferent nuclei at stage 14. The first hypoglossal nerve fibers appear at stage 12. The roots unite at stage 14 and the main trunk arrives in the tongue at stage 15. Four occipital somites can be identified during stage 13, and the sclerotomic material forms two bilateral masses. The fourth sclerotome separates in stage 14 and develops like a vertebra. This and the remaining sclerotomic material form the basioccipital and exoccipital parts of the chondrocranium, which are the first to appear. Four occipital myotomes develop and grow towards the tongue as the “hypoglossal cord”, which arrives prior to the hypoglossal nerve. The developmental similarity in the hypoglossal region between birds and mammals, combined with experimental studies in birds, renders it extremely likely that the hypoglossal musculature in mammals also is derived from occipital somites. The present study is the first in which this conclusion is adequately supported in the human. This investigation aids in the interpretation and timing of origin of variations (e.g., bipartite hypoglossal canal) and anomalies (e.g., persistent hypoglossal artery). Wiley InterScience Backfile Collection 1832-2000 O'Rahilly, Ronan oth Müller, Fabiola oth in American Journal of Anatomy New York, NY [u.a.] : Wiley 169(1984) vom: März, Seite 237-257 (DE-627)NLEJ159070953 (DE-600)2202735-X 0002-9106 nnns volume:169 year:1984 month:03 pages:237-257 extent:21 http://dx.doi.org/10.1002/aja.1001690302 text/html Deutschlandweit zugänglich GBV_USEFLAG_U ZDB-1-WIS GBV_NL_ARTICLE AR 169 1984 3 237-257 21 |
| language |
English |
| source |
in American Journal of Anatomy 169(1984) vom: März, Seite 237-257 volume:169 year:1984 month:03 pages:237-257 extent:21 |
| sourceStr |
in American Journal of Anatomy 169(1984) vom: März, Seite 237-257 volume:169 year:1984 month:03 pages:237-257 extent:21 |
| format_phy_str_mv |
Article |
| institution |
findex.gbv.de |
| isfreeaccess_bool |
false |
| container_title |
American Journal of Anatomy |
| authorswithroles_txt_mv |
O'Rahilly, Ronan @@oth@@ Müller, Fabiola @@oth@@ |
| publishDateDaySort_date |
1984-03-01T00:00:00Z |
| hierarchy_top_id |
NLEJ159070953 |
| id |
NLEJ160633494 |
| language_de |
englisch |
| fullrecord |
<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">NLEJ160633494</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20210707041926.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">070201s1984 xx |||||o 00| ||eng c</controlfield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)NLEJ160633494</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">The early development of the hypoglossal nerve and occipital somites in staged human embryos</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">1984</subfield></datafield><datafield tag="300" ind1=" " ind2=" "><subfield code="b">14 Ill.</subfield><subfield code="b">1 Tab.</subfield></datafield><datafield tag="300" ind1=" " ind2=" "><subfield code="a">21</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zzz</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">z</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zu</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Serial sections of 105 human embryos (including 20 silver preparations) from stage 11 (24 days) to stage 22 (54 days) were studied, and 23 graphic reconstructions were prepared. The hypoglossal nucleus is evident at stage 12 and becomes isolated from other efferent nuclei at stage 14. The first hypoglossal nerve fibers appear at stage 12. The roots unite at stage 14 and the main trunk arrives in the tongue at stage 15. Four occipital somites can be identified during stage 13, and the sclerotomic material forms two bilateral masses. The fourth sclerotome separates in stage 14 and develops like a vertebra. This and the remaining sclerotomic material form the basioccipital and exoccipital parts of the chondrocranium, which are the first to appear. Four occipital myotomes develop and grow towards the tongue as the “hypoglossal cord”, which arrives prior to the hypoglossal nerve. The developmental similarity in the hypoglossal region between birds and mammals, combined with experimental studies in birds, renders it extremely likely that the hypoglossal musculature in mammals also is derived from occipital somites. The present study is the first in which this conclusion is adequately supported in the human. This investigation aids in the interpretation and timing of origin of variations (e.g., bipartite hypoglossal canal) and anomalies (e.g., persistent hypoglossal artery).</subfield></datafield><datafield tag="533" ind1=" " ind2=" "><subfield code="f">Wiley InterScience Backfile Collection 1832-2000</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">O'Rahilly, Ronan</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Müller, Fabiola</subfield><subfield code="4">oth</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">in</subfield><subfield code="t">American Journal of Anatomy</subfield><subfield code="d">New York, NY [u.a.] : Wiley</subfield><subfield code="g">169(1984) vom: März, Seite 237-257</subfield><subfield code="w">(DE-627)NLEJ159070953</subfield><subfield code="w">(DE-600)2202735-X</subfield><subfield code="x">0002-9106</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:169</subfield><subfield code="g">year:1984</subfield><subfield code="g">month:03</subfield><subfield code="g">pages:237-257</subfield><subfield code="g">extent:21</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">http://dx.doi.org/10.1002/aja.1001690302</subfield><subfield code="q">text/html</subfield><subfield code="z">Deutschlandweit zugänglich</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">ZDB-1-WIS</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_NL_ARTICLE</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">169</subfield><subfield code="j">1984</subfield><subfield code="c">3</subfield><subfield code="h">237-257</subfield><subfield code="g">21</subfield></datafield></record></collection>
|
| series2 |
Wiley InterScience Backfile Collection 1832-2000 |
| ppnlink_with_tag_str_mv |
@@773@@(DE-627)NLEJ159070953 |
| format |
electronic Article |
| delete_txt_mv |
keep |
| collection |
NL |
| remote_str |
true |
| illustrated |
Illustrated |
| issn |
0002-9106 |
| topic_title |
The early development of the hypoglossal nerve and occipital somites in staged human embryos |
| format_facet |
Elektronische Aufsätze Aufsätze Elektronische Ressource |
| format_main_str_mv |
Text Zeitschrift/Artikel |
| carriertype_str_mv |
zu |
| author2_variant |
r o ro f m fm |
| hierarchy_parent_title |
American Journal of Anatomy |
| hierarchy_parent_id |
NLEJ159070953 |
| hierarchy_top_title |
American Journal of Anatomy |
| isfreeaccess_txt |
false |
| familylinks_str_mv |
(DE-627)NLEJ159070953 (DE-600)2202735-X |
| title |
The early development of the hypoglossal nerve and occipital somites in staged human embryos |
| spellingShingle |
The early development of the hypoglossal nerve and occipital somites in staged human embryos |
| ctrlnum |
(DE-627)NLEJ160633494 |
| title_full |
The early development of the hypoglossal nerve and occipital somites in staged human embryos |
| journal |
American Journal of Anatomy |
| journalStr |
American Journal of Anatomy |
| lang_code |
eng |
| isOA_bool |
false |
| recordtype |
marc |
| publishDateSort |
1984 |
| contenttype_str_mv |
zzz |
| container_start_page |
237 |
| container_volume |
169 |
| physical |
14 Ill. 1 Tab. 21 |
| format_se |
Elektronische Aufsätze |
| title_sort |
the early development of the hypoglossal nerve and occipital somites in staged human embryos |
| title_auth |
The early development of the hypoglossal nerve and occipital somites in staged human embryos |
| abstract |
Serial sections of 105 human embryos (including 20 silver preparations) from stage 11 (24 days) to stage 22 (54 days) were studied, and 23 graphic reconstructions were prepared. The hypoglossal nucleus is evident at stage 12 and becomes isolated from other efferent nuclei at stage 14. The first hypoglossal nerve fibers appear at stage 12. The roots unite at stage 14 and the main trunk arrives in the tongue at stage 15. Four occipital somites can be identified during stage 13, and the sclerotomic material forms two bilateral masses. The fourth sclerotome separates in stage 14 and develops like a vertebra. This and the remaining sclerotomic material form the basioccipital and exoccipital parts of the chondrocranium, which are the first to appear. Four occipital myotomes develop and grow towards the tongue as the “hypoglossal cord”, which arrives prior to the hypoglossal nerve. The developmental similarity in the hypoglossal region between birds and mammals, combined with experimental studies in birds, renders it extremely likely that the hypoglossal musculature in mammals also is derived from occipital somites. The present study is the first in which this conclusion is adequately supported in the human. This investigation aids in the interpretation and timing of origin of variations (e.g., bipartite hypoglossal canal) and anomalies (e.g., persistent hypoglossal artery). |
| abstractGer |
Serial sections of 105 human embryos (including 20 silver preparations) from stage 11 (24 days) to stage 22 (54 days) were studied, and 23 graphic reconstructions were prepared. The hypoglossal nucleus is evident at stage 12 and becomes isolated from other efferent nuclei at stage 14. The first hypoglossal nerve fibers appear at stage 12. The roots unite at stage 14 and the main trunk arrives in the tongue at stage 15. Four occipital somites can be identified during stage 13, and the sclerotomic material forms two bilateral masses. The fourth sclerotome separates in stage 14 and develops like a vertebra. This and the remaining sclerotomic material form the basioccipital and exoccipital parts of the chondrocranium, which are the first to appear. Four occipital myotomes develop and grow towards the tongue as the “hypoglossal cord”, which arrives prior to the hypoglossal nerve. The developmental similarity in the hypoglossal region between birds and mammals, combined with experimental studies in birds, renders it extremely likely that the hypoglossal musculature in mammals also is derived from occipital somites. The present study is the first in which this conclusion is adequately supported in the human. This investigation aids in the interpretation and timing of origin of variations (e.g., bipartite hypoglossal canal) and anomalies (e.g., persistent hypoglossal artery). |
| abstract_unstemmed |
Serial sections of 105 human embryos (including 20 silver preparations) from stage 11 (24 days) to stage 22 (54 days) were studied, and 23 graphic reconstructions were prepared. The hypoglossal nucleus is evident at stage 12 and becomes isolated from other efferent nuclei at stage 14. The first hypoglossal nerve fibers appear at stage 12. The roots unite at stage 14 and the main trunk arrives in the tongue at stage 15. Four occipital somites can be identified during stage 13, and the sclerotomic material forms two bilateral masses. The fourth sclerotome separates in stage 14 and develops like a vertebra. This and the remaining sclerotomic material form the basioccipital and exoccipital parts of the chondrocranium, which are the first to appear. Four occipital myotomes develop and grow towards the tongue as the “hypoglossal cord”, which arrives prior to the hypoglossal nerve. The developmental similarity in the hypoglossal region between birds and mammals, combined with experimental studies in birds, renders it extremely likely that the hypoglossal musculature in mammals also is derived from occipital somites. The present study is the first in which this conclusion is adequately supported in the human. This investigation aids in the interpretation and timing of origin of variations (e.g., bipartite hypoglossal canal) and anomalies (e.g., persistent hypoglossal artery). |
| collection_details |
GBV_USEFLAG_U ZDB-1-WIS GBV_NL_ARTICLE |
| title_short |
The early development of the hypoglossal nerve and occipital somites in staged human embryos |
| url |
http://dx.doi.org/10.1002/aja.1001690302 |
| remote_bool |
true |
| author2 |
O'Rahilly, Ronan Müller, Fabiola |
| author2Str |
O'Rahilly, Ronan Müller, Fabiola |
| ppnlink |
NLEJ159070953 |
| mediatype_str_mv |
z |
| isOA_txt |
false |
| hochschulschrift_bool |
false |
| author2_role |
oth oth |
| up_date |
2024-07-06T01:11:54.160Z |
| _version_ |
1803790124749684736 |
| fullrecord_marcxml |
<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">NLEJ160633494</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20210707041926.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">070201s1984 xx |||||o 00| ||eng c</controlfield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)NLEJ160633494</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">The early development of the hypoglossal nerve and occipital somites in staged human embryos</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">1984</subfield></datafield><datafield tag="300" ind1=" " ind2=" "><subfield code="b">14 Ill.</subfield><subfield code="b">1 Tab.</subfield></datafield><datafield tag="300" ind1=" " ind2=" "><subfield code="a">21</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zzz</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">z</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zu</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Serial sections of 105 human embryos (including 20 silver preparations) from stage 11 (24 days) to stage 22 (54 days) were studied, and 23 graphic reconstructions were prepared. The hypoglossal nucleus is evident at stage 12 and becomes isolated from other efferent nuclei at stage 14. The first hypoglossal nerve fibers appear at stage 12. The roots unite at stage 14 and the main trunk arrives in the tongue at stage 15. Four occipital somites can be identified during stage 13, and the sclerotomic material forms two bilateral masses. The fourth sclerotome separates in stage 14 and develops like a vertebra. This and the remaining sclerotomic material form the basioccipital and exoccipital parts of the chondrocranium, which are the first to appear. Four occipital myotomes develop and grow towards the tongue as the “hypoglossal cord”, which arrives prior to the hypoglossal nerve. The developmental similarity in the hypoglossal region between birds and mammals, combined with experimental studies in birds, renders it extremely likely that the hypoglossal musculature in mammals also is derived from occipital somites. The present study is the first in which this conclusion is adequately supported in the human. This investigation aids in the interpretation and timing of origin of variations (e.g., bipartite hypoglossal canal) and anomalies (e.g., persistent hypoglossal artery).</subfield></datafield><datafield tag="533" ind1=" " ind2=" "><subfield code="f">Wiley InterScience Backfile Collection 1832-2000</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">O'Rahilly, Ronan</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Müller, Fabiola</subfield><subfield code="4">oth</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">in</subfield><subfield code="t">American Journal of Anatomy</subfield><subfield code="d">New York, NY [u.a.] : Wiley</subfield><subfield code="g">169(1984) vom: März, Seite 237-257</subfield><subfield code="w">(DE-627)NLEJ159070953</subfield><subfield code="w">(DE-600)2202735-X</subfield><subfield code="x">0002-9106</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:169</subfield><subfield code="g">year:1984</subfield><subfield code="g">month:03</subfield><subfield code="g">pages:237-257</subfield><subfield code="g">extent:21</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">http://dx.doi.org/10.1002/aja.1001690302</subfield><subfield code="q">text/html</subfield><subfield code="z">Deutschlandweit zugänglich</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">ZDB-1-WIS</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_NL_ARTICLE</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">169</subfield><subfield code="j">1984</subfield><subfield code="c">3</subfield><subfield code="h">237-257</subfield><subfield code="g">21</subfield></datafield></record></collection>
|
| score |
7.400485 |