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What is Epiglottis is Embryologically developed from and explain in detail?
EMBRYOLOGICAL DEVELOPMENT Laryngeal mucosa develops from the endoderm of the cephalic pa of foregut. Laryngeal cailages and muscles develop from the mesenchyme. Development of other structures is as follows: Epiglottis:- Hypobranchial eminence. Upper pa of thyroid cailage:- 4th arch . Lower pa of thyroid cailage , Cricoid cailage , Corniculate cailage, Cuneiform cailage, Intrinsic muscles of larynx:- 6th arch. Upper pa of body of hyoid bone , Lesser cornua of hyoid bone ,Stylohyoid ligament :- 2nd arch. Lower pa of body of hyoid bone and greater cornua:- 3rd arch. Ref:- Dhingra; pg num:-285