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Intermaxillary segment

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Intermaxillary segment

Intermaxillary segment
Diagram showing the regions of the adult face and neck related to the fronto-nasal process and the branchial arches. (Globular processes labeled at center right.)
Gray's subject #13 68
Precursor medial nasal prominence[1]
Gives rise to primary palate[2]

In a human embryo, the inter-maxillary segment is a mass of tissue which forms from the merging of some of the tissues in the vicinity of the nose. It is essential for human survival. It is primordial, meaning that in the further development of the embryo, this particular mass no longer appears, but parts of it remain in "the inter-maxillary portion of the upper jaw, the pro-labial portion of the upper lip, and the primary palate."

More precisely, the rounded lateral angles of the medial process constitute the globular processes. It is also known as the intermaxillary segment.[3] It gives rise to the premaxilla.[4]

See also

References

External links

  • http://www.ana.ed.ac.uk/anatomy/database/humat/notes/embryo/branchi.htm
  • http://isc.temple.edu/marino/embryology/Face98/face_text.htm

This article incorporates text from a public domain edition of Gray's Anatomy.


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