Development of Head and Neck

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15.1 EMBRYOLOGY [Morph]

NOTE OVERLAP with section

OTFA 22–23

Enough to understand formation of general layout and innervation of head, including skull, eye and face development [OTFA 22–23]

 

Formation of the head fold, foregut.
Branchial arches, branchial pouches, ectodermal clefts and their main derivatives.
Contribution of neural crest to cranial ectoderm.
Face formation: contributions of frontonasal, maxillary, mandibular processes.
Formation of nasal cavity; primary and secondary palate.
Formation of mouth, tongue, pharynx.
Formation of thyroid gland, parathyroid glands, thymus, tonsil, pharyngo-tympanic tube
Postnatal development of paranasal sinuses.

 

[OTFA 25–26]

Clefts of lip, palate, face [OTFA 25–26]

[OTFA 45–46]

Ectopic thyroid and parathyroid tissue [OTFA 45–46] Branchial cysts. Thyroid cysts.
 

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