Cervical sinus

Cervical sinus
Cervical sinus
Kiemenbogen.jpg
Pattern of the branchial arches. I-IV branchial arches, 1-4 branchial pouches (inside) and/or pharyngeal grooves (outside)
a Tuberculum laterale
b Tuberculum impar
c Foramen cecum
d Ductus thyreoglossus
e Sinus cervicalis
Latin sinus cervicalis
Gray's subject #13 67

The mandibular and hyoid arches grow more rapidly than those behind them, with the result that the latter become, to a certain extent, telescoped within the former, and a deep depression, the cervical sinus, is formed on either side of the neck.

This sinus is bounded in front by the hyoid arch, and behind by the thoracic wall; it is ultimately obliterated by the fusion of its walls.

Additional images

  • The head and neck of a human embryo thirty-two days old, seen from the ventral surface.

External links

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.

v · d · eHuman development of head and neck (GA 1.65, TE E5.3, 5.4)
Face
Oral cavity
Primary palate · Secondary palate
Lateral lingual swelling · Tuberculum impar · Copula linguae · Hypopharyngeal eminence · Gustatory placode
General
branchial apparatus
Pharyngeal groove (Cervical sinus) · Pharyngeal arch (1st, 2nd) · Pharyngeal pouch

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Look at other dictionaries:

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  • cervical sinus — a temporary depression caudal to the second pharyngeal (hyoid) arch, containing the succeeding pharyngeal arches; it is overgrown by the second pharyngeal arch and closes off as the cervical vesicle …   Medical dictionary

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  • cervical notch — Strong indentation of carapace at level of cervical groove (e.g., scyllarid palinurans). (Syn. cervical incision) [Moore and McCormick, 1969]. Strong indentation of carapace at level of cervical groove [McLaughlin, 1980]. (Order Cladocera):… …   Crustacea glossary

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