pharyngeal arch

pharyngeal arch
= branchial arch; = visceral arch
any of the paired segmented ridges of tissue in each side of the throat of the early embryo that correspond to the gill arches of fish. Each arch contains a cartilage, a cranial nerve, and a blood vessel. Between each arch there is a pharyngeal pouch.

The new mediacal dictionary. 2014.

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  • pharyngeal arch — n BRANCHIAL ARCH * * * (branchial arch, visceral arch) any of the paired segmented ridges of tissue in each side of the throat of the early embryo that correspond to the gill arches of fish. Each arch contains a cartilage, a cranial nerve, and a… …   Medical dictionary

  • Pharyngeal arch — Infobox Embryology Name = Branchial arch Latin = GraySubject = 13 GrayPage = 65 Caption = Schematic of developing fetus with first, second and third arches labeled. Caption2 = Floor of pharynx of human embryo about twenty six days old. System =… …   Wikipedia

  • pharyngeal arch — a segment of the lateral wall of the pharynx that will form jaw and gill structures. The anterior two arches form jaw structures and the following 5 arches form gill structures. Each arch is separated from its neighbours by an endodermal… …   Dictionary of ichthyology

  • pharyngeal arch — noun : branchial arch …   Useful english dictionary

  • First pharyngeal arch — First branchial arch Diagram showing the regions of the adult face and neck related to the fronto nasal process and the branchial arches …   Wikipedia

  • 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.… …   Medical dictionary

  • Pharyngeal groove — 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 …   Wikipedia

  • pharyngeal cartilage — pharyngeal arch cartilage one of the rods of cartilage in the mesenchyme of the pharyngeal arches of the embryo, from which the cartilaginous viscerocranium develops …   Medical dictionary

  • first pharyngeal arch — the first of the pharyngeal arches in the human embryo, later differentiating into the sphenomandibular and anterior malleolar ligaments, malleus, and incus; it also gives rise to two prominences (the maxillary and mandibular prominences), from… …   Medical dictionary

  • pharyngeal arches — term used to denote the branchial arches (q.v.) in human embryos. The first and second pharyngeal arches (qq.v.) contribute to the formation of the upper and lower jaws and the hyoid bone. The third pharyngeal arch develops into the greater horn… …   Medical dictionary

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