<prompt> Which of the following laryngeal muscle arise from the 4th arch?CricothyroidTransverse arytenoidsPosterior cricoarytenoidLateral arytenoids  <response>: The neck is formed by the elongation of the region between the stomatodeum and the pericardium. This is achieved, paly, by a descent of the developing hea. However, this elongation is due mainly to the appearance of a series of mesodermal thickenings in the wall of the cranial-most pa of the foregut, i.e. future pharynx. These mesodermal thickenings are called the pharyngeal, or branchial, arches. Fouh arch - Larynx -Cricothyroid Muscles of pharynx Intrinsic muscles of soft palate except tensor palati. Ref: Inderbir Singhs Human Embryology, eleventh edition, pg. no.,127, Table Ref: Inderbir Singhs Human Embryology, eleventh edition, pg. no., 130 Table 9.2. 