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What is Facial skeleton develops from and explain in detail?
The viscerocranium forms the facial skeleton and the major pa of which develops from mesenchyme derived from 1st and 2nd pharyngeal arches.The lacrimal and nasal bones are derived from neural crest cells. The paraxial mesoderm undergoes segmentation to form somitomeres and somites that fuher differentiate into sclerotome, myotome, and dermatome. The intermediate mesoderm forms most of the genito-urinary system -eg; kidneys, testes, ovaries The lateral plate mesoderm forms body wall and body cavities. Reference: Textbook of clinical embryology, Vishram Singh,1st edition,page no.94,49