pharyngeal apparatus

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pharyngeal arches

1. obliquely disposed, rounded ridges on either side of the head and neck of human embryos during the fourth and fifth gestational weeks, which contribute to formation of the face and neck.
2. aggregate of the pharyngeal arches, pouches, grooves, and membranes seen in the developing embryo of vertebrates.

pha·ryn·ge·al ap·pa·ra·tus

(făr-in'jē-ăl ap'ă-rat'ŭs)
The aggregate of pharyngeal arches, pouches, grooves, and membranes present in early embryos.
Synonym(s): branchial apparatus.
References in periodicals archive ?
Imaging of congenital anomalies of the branchial apparatus.
Second branchial apparatus cysts are the most common and account for up to 95% of all branchial apparatus anomalies.
Nonetheless, a general understanding is evident regarding how the components of the head and neck anatomy are derived from the branchial apparatus.
Branchial cleft anomalies occur as a result of an incomplete obliteration of the branchial apparatus during fetal development.
During fetal development, structures between the head and heart arise from the branchial apparatus.
Anomalies of the branchial apparatus occur with some frequency in the adult and pediatric populations.