<prompt> Which of the following pharyngeal arch give rise to epiglottis in embryological life?1st pharyngeal arch2nd pharyngeal arch3rd pharyngeal arch4th pharyngeal arch  <response>: The hypobranchial eminence, derived from the bases of the third and fouh pharyngeal arches, forms the epiglottis. Pharyngeal and laryngeal muscles, laryngeal skeleton, cranial nerve X are derived from fouh and sixth pharyngeal arches.Ref: A Textbook of Neuroanatomy By Maria Patestas, Leslie P. Ganer, 2009, Page 16. 