second pharyngeal arch

second pharyngeal arch
in the human embryo, the pharyngeal arch just caudal to the first pharyngeal arch; it later differentiates into the stapes, styloid process of temporal bone, stylohyoid ligament, lesser horn of the hyoid bone, and cranial part of the hyoid bone. Called also hyoid a.

Medical dictionary. 2011.

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  • hyoid arch — second pharyngeal a …   Medical dictionary

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  • Hyoid bone — Bone: Hyoid bone Hyoid bone. Anterior surface. Enlarged …   Wikipedia

  • 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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