pharyngeal groove

Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.


a narrow, linear hollow or depression.
branchial groove pharyngeal groove.
Harrison's groove a horizontal groove along the lower border of the thorax corresponding to the costal insertion of the diaphragm; seen in advanced rickets in childhood.
medullary groove (neural groove) that formed by the beginning invagination of the neural plate of the embryo to form the neural tube.
pharyngeal groove a groove between a pair of pharyngeal arches in a mammalian embryo, homologous to the branchial cleft of a fish, formed by rupture of the membrane separating a corresponding entodermal pouch and ectodermal groove.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

pha·ryn·ge·al groove

(făr-in'jē-ăl grūv)
The ectodermal groove between two pharyngeal arches in the human embryo.
Synonym(s): branchial cleft, pharyngeal cleft.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012