Premium
Morphogenesis of the second pharyngeal arch cartilage (Reichert's cartilage) in human embryos
Author(s) -
RodríguezVázquez J. F.,
MéridaVelasco J. R.,
VerdugoLópez S.,
SánchezMontesinos I.,
MéridaVelasco J. A.
Publication year - 2006
Publication title -
journal of anatomy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.932
H-Index - 118
eISSN - 1469-7580
pISSN - 0021-8782
DOI - 10.1111/j.1469-7580.2006.00524.x
Subject(s) - anatomy , cartilage , neurovascular bundle , morphogenesis , medicine , biology , biochemistry , gene
This study was performed on 50 human embryos and fetuses between 7 and 17 weeks of development. Reichert's cartilage is formed in the second pharyngeal arch in two segments. The longer cranial or styloid segment is continuous with the otic capsule; its inferior end is angulated and is situated very close to the oropharynx. The smaller caudal segment is in contact with the body and greater horn of the hyoid cartilaginous structure. No cartilage forms between these segments. The persistent angulation of the inferior end of the cranial or styloid segment of Reichert's cartilage and its important neurovascular relationships may help explain the symptomatology of Eagle's syndrome.