VAN 211: Veterinary Histology and Embryology (2+2)

CHEEK

• The fusion of the jaws results in the formation of cheeks.
• The degree of the fusion is a factor determining the size of the opening into the oral cavity (rima oris ).
• The labial and buccal muscles differentiating from the mesenchyme of the second branchial arches which migrates between the epidermal covering and mucosal lining of these parts.