Maxillary prominence | |
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![]() Diagram showing the regions of the adult face and neck related to the fronto-nasal process and thepharyngeal arches. (Maxillary process visible at center right.) | |
![]() Head end of human embryo of about thirty to thirty-one days. | |
Details | |
Precursor | first pharyngeal arch |
Identifiers | |
Latin | prominentia maxilaris |
TE | prominence_by_E5.3.0.0.0.0.13 E5.3.0.0.0.0.13 |
Anatomical terminology |
Continuous with the dorsal end of thefirst pharyngeal arch, and growing forward from its cephalic border, is a triangular process, themaxillary prominence (ormaxillary process), theventral extremity of which is separated from themandibular arch by a ">"-shaped notch.
The maxillary prominence forms the lateral wall and floor of theorbit, and in it are ossified thezygomatic bone and the greater part of themaxilla; it meets with themedial nasal prominence, from which, however, it is separated for a time by a groove, thenaso-optic furrow, that extends from the furrow encircling the eyeball to thenasal pit.
The maxillary prominences ultimately fuse with the medial nasal prominence and the globular processes, and form the lateral parts of theupper lip and the posterior boundaries of thenares.
It is innervated by themaxillary nerve.[1]