Normal Anatomy  
Embryology 1

Embryology 1

Description : The auricle develops from six hillocks situated around the dorsal extremity of the first branchial groove. Between four and six weeks of gestation, three anterior hillocks arise from the first (mandibular) arch, and three posterior hillocks develop on the second (hyoid) arch. By the end of the six weeks, these hillocks are transformed into the folds of the developing auricle.

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