Primary palate

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Primary palate

Primitive palate of a human embryo of thirty-seven to thirty-eight days.
Latin	palatum primarium; processus palatinus medianus
Gray's	p.70
Precursor	intermaxillary segment
Code	TE E5.4.1.1.4.0.3

Around the fifth week, the intermaxillary segment araises as a result of fusion of the two medial nasal processes and the frontonasal process within the embryo. The intermaxillary segment give rise to the primary palate. The primary palate will form the premaxillary portion of the maxilla (anterior one-third of the final palate). This small portion is anterior to the incisive foramen and will contain the maxillary incisors.

References

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

Human development of head and neck (GA 1.65, TE E5.3, 5.4)

Face

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

M: MOU

anat/devp

noco/cofa (c)/cogi/tumr, sysi

proc (peri), drug (A1)

Prenatal development/Mammalian development of digestive system, coelom and septa, and mesenchymal mesenteric masses (GA 11.1101, TE E5.4, 5.8-9)

Gut

Upper GI tract and accessory	Stomodeum Foregut: upper GI Buccopharyngeal membrane Rathke's pouch Tracheoesophageal septum accessory Pancreatic bud Hepatic diverticulum

Lower GI tract	Midgut Hindgut: Urorectal septum Proctodeum Cloacal membrane Cloaca

Abdominopelvic

Mesentery	Dorsal mesentery Ventral mesentery

Thoracic diaphragm	Septum transversum

Other	Intra-embryonic coelom Extra-embryonic coelom

M: DIG

anat (t, g, p)/phys/devp/enzy

noco/cong/tumr, sysi/epon

proc, drug (A2A/2B/3/4/5/6/7/14/16), blte

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