Posterior one-third of the tongue develops from -

DEVELOPMENT OF THE TONGUE:- I. Epithelium Ant 2/3 - lingual swellings of 1st arch and tuberculum impar Post 1/3 - large dorsal part of hypobranchial eminence, i.e. 3rd arch Posterior most part - small dorsal part of the hypobranchial eminence, i.e. 4th arch II. Muscles From occipital myotomes except palatoglossus Which is derived from the 6th arch.