Primary palate

Primary palate
Primitive palate of a human embryo of thirty-seven to thirty-eight days.
Details
Precursor	intermaxillary segment
Identifiers
Latin	palatum primarium; processus palatinus medianus
Code	TE E5.4.1.1.4.0.3
*Anatomical terminology* [edit on Wikidata]

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 in the public domain from the 20th edition of Gray's Anatomy (1918)

Development of the head and neck

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

Development of the digestive system

Gut

Foregut	Stomodeum Buccopharyngeal membrane Rathke's pouch Tracheoesophageal septum Accessory digestive glands Pancreatic bud Hepatic diverticulum

Midgut	Midgut

Hindgut	Urorectal septum Proctodeum Cloaca Cloacal membrane

Other

Mesentery	Dorsal Ventral

Thoracic diaphragm	Septum transversum

Cavities	Intra-embryonic coelom Extra-embryonic coelom

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