Evolutionary Biology and Comparative Anatomy Lecture: Muscles of 3rd and successive arches:

In tetrapods, primary muscles include:
1. stylopharyngeus (Arch III)
2. Intrinsic muscles of the larynx
3. Cucullaris

a. gives rise to trapezius, cleidomastoid, and sternocleidomastoid muscles of amniotes
b. voicebox
c. used for swallowing

Question

Muscles of 3rd and successive arches:

In tetrapods, primary muscles include:
1. stylopharyngeus (Arch III) 
2. Intrinsic muscles of the larynx
3. Cucullaris

a. gives rise to trapezius, cleidomastoid, and sternocleidomastoid muscles of amniotes
b. voicebox
c. used for swallowing

Stelle Anthonette · Accepted Answer

1. c.
2. b.
3. a.

Muscles of 3rd and successive arches: In tetrapods, primary muscles include: 1. stylopharyngeus (Arch III) 2. Intrinsic muscles of the larynx 3. Cucullaris a. gives rise to trapezius, cleidomastoid, and sternocleidomastoid muscles of amniotes b. voicebox c. used for swallowing