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The medial nasal prominence (nasomedial) is an embryological structure that forms the upper lip and nose.[1]

Medial nasal prominence
Head end of human embryo of about thirty to thirty-one days.
Same embryo as shown above, with front wall of pharynx removed.
Precursor frontonasal prominence
Gives rise to intermaxillary segment
Latin prominentia nasalis medialis
TE E5.
Anatomical terminology

They join to form the intermaxillary segment.[2]


  1. ^ Senders CW, Peterson EC, Hendrickx AG, Cukierski MA (2003). "Development of the upper lip". Arch Facial Plast Surg. 5 (1): 16–25. doi:10.1001/archfaci.5.1.16. PMID 12533133. [permanent dead link]
  2. ^ Langman, Jan; Thomas Sadler (2006). Langman's medical embryology. Hagerstown, MD: Lippincott Williams & Wilkins. p. 272. ISBN 0-7817-9485-4. 

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