Intermaxillary segment

In a human embryo (An organism at any time before full development, birth, or hatching), the intermaxillary segment is a mass of tissue formed by merging of tissues in the vicinity of the nose. It is essential for human survival. It is primordial, since in the further development of the embryo this particular mass no longer appears, but parts of it remain in "the intermaxillary portion of the upper jaw, the 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]

• Head end of human embryo of about thirty to thirty-one days.

• Same embryo as shown in Fig. 45, with front wall of pharynx removed.

• See also

  • Philtrum

  References
• ^ Langman, Jan; Thomas Sadler (2006). Langman's medical embryology. Hagerstown, MD: Lippincott Williams & Wilkins. p. 272. ISBN . 
• ^ plastic/216 at eMedicine
• ^ Globular Process - Medical Dictionary Definition
• ^ Development Of The Head And Neck

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.

Human development of head and neck (GA 1.65, TE E5.3, 5.4) Face Nasal placode Nasal pit nasal prominences Lateral Medial Intermaxillary segment Frontonasal prominence Maxillary prominence Mandibular prominence Meckel's cartilage Oral cavity Palate Primary palate Secondary palate Tongue Lateral lingual swelling Tuberculum impar Copula linguae Hypopharyngeal eminence Gustatory placode General branchial apparatus Pharyngeal groove Cervical sinus Pharyngeal arch 1st 2nd Pharyngeal pouch : MOU / / ()//, (), drug ()