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phargeal apparatus
embryo Head and neck
starts | becomes |
---|---|
1st brachial arch | mandibular, merkle's |
2nd brachial arch | Reichart's, hyoid (anterior, lessor) |
3rd brachial arch | pharygeal area, hyoid (posterior, greater) |
4th and 6th brachial arch | cricoid cartilage, phargeal |
1st pouch | mastoid antrum |
2nd pouch | palatine tonsils |
3rd and 4th pouch | parathyroid and thymus |
1st groove | external acoustic meatus |
1st membrane | tympanic membrane |
2nd groove | nothing |