Posterior one-third of the tongue develops from
Posterior one third is developed from cranial pa of hypobranchial eminence, which is formed by fusion of third and fouh branchial arches only. The eminence is divided by a transverse groove into cranial and caudal pa. Notes: posterior one third is supplied by glossopharyngeal nerve.
Lingual swellings
Tuberculum impar
Hypobranchial eminence
Tongue bud
Head and neck