Pharyngeal apparatus

The pharyngeal apparatus is an embryological structure.

[1][2] It consists of: and related membranes.

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Pattern of the pharyngeal arches . I-IV pharyngeal arches, 1–4 pharyngeal pouches (inside) and/or pharyngeal grooves (outside)
a Tuberculum laterale
b Tuberculum impar
c Foramen cecum
d Ductus thyreoglossus
e Sinus cervicalis