Asked by Lishia Matlock on Sep 23, 2024
Which of the following muscles of the head and neck elevate(s) ribs 1 and 2, and flex(es) and rotate(s) the neck when the first rib is flexed?
A) Sternocleidomastoid
B) Splenius capitis
C) Semispinalis capitis
D) Scalenes
E) The superior portion of the trapezius
Sternocleidomastoid
A muscle in the neck that runs from the sternum and clavicle to the mastoid process of the temporal bone, involved in facilitating rotation and flexion of the neck.
Semispinalis Capitis
is a muscle of the back located beneath the trapezius, playing a key role in extending, rotating, and bending the head backwards.
Splenius Capitis
A muscle located in the back of the neck that functions in extending and rotating the head.
- Describe the action and anatomy of specific muscles of the head and neck that elevate ribs and flex and rotate the neck.
Learning Objectives
- Describe the action and anatomy of specific muscles of the head and neck that elevate ribs and flex and rotate the neck.