Anatomy: Neck

Question 1

what are the borders of the posterior triangles of the neck

Answer 1

trapezius, sternocleidomastoid, clavicle

Question 2

what are the borders of the anterior triangles of the neck

Answer 2

sternocleidomastoid, midline of neck, angle of mandible, inferior border of the mandible

Question 3

what are all the strap muscles(except thyrohyoid) innervated by

Answer 3

the ansa cervicalis of the cervical plexus

arises from C1-3

Question 4

what is the thyrohyoid innervated by

Answer 4

C1, which travels with the hypoglossal nerve