(redirected from branchial apparatus)
Also found in: Dictionary, Thesaurus, Medical, Encyclopedia.
References in periodicals archive ?
Mafee, "Congenital anomalies of the branchial apparatus: embryology and pathologic anatomy," Radiographics, vol.
The branchial apparatus consists of six grooves (ectoderm), arches (mesoderm), and pouches (endoderm).
Sakamoto (1984) utilized data on the branchial apparatus in his phylogenetic studies of Pleuronectidae, exploiting seven characters: 5th ceratobranchials, the shape of the 1st epibranchial, teeth on the 3rd epibranchial, gill rakers on the upper limb of the branchial arch, spines on gill rakers, shape of gill rakers and bony plates on the branchial arches.
The first branchial apparatus normally gives rise to the eustachian tube, tympanic cavity, mastoid antrum, a portion of the tympanic membrane, external auditory canal, the mandible, maxilla, and the malleus and incus.
In in vitro teratogenicity assays with rat embryos, changes at the branchial apparatus were seen at 6.25 [micro]M (Menegola et al.
Most are thyroid related.[4] Lateral enlargements may indicate lymphadenopathy or congenital branchial apparatus anomalies.
INTRODUCTION: The branchial cyst, fistula, and sinuses are the anomalies of the branchial apparatus which consists of five mesodermal arches separated by invaginations of the ectoderm called as clefts.
Branchial anomalies are caused by incomplete obliteration of the branchial apparatus during fetal development.
The branchial apparatus of all vertebrates is composed of 6 pharyngeal arches, but only 4 are well developed in mammals and birds.
The majority of cystic neck masses in children are congenital malformations and include thyroglossal duct cysts, branchial apparatus cysts, dermoid cysts, and lymphatic malformations.