Your friend nods back and forth to you, making the "yes" motion. What muscles are involved in this 'yes' motion? Select all that apply.
a) bilaterally sternocleidomastoid
b) unilaterally sternocleidomastoid
c) bilaterally semispinalis capitis
d) unilaterally semispinalis capitis
e) bilaterally splenius capitis
f) unilaterally splenius capitis
g) bilaterally longissimus capitis
h) unilaterally longissimus capitis
i) spinalis capitis
Answer:
a) bilaterally sternocleidomastoid
c) bilaterally semispinalis capitis
e) bilaterally splenius capitis
g) bilaterally longissimus capitis
i) spinalis capitis
Explanation:
There are different muscles involved in 5he motion of nodding the head to make a "yes" motion and the neck is a major part of the body that is involved in the movement.
The muscles involved in the movement specifically are a) bilaterally sternocleidomastoid
c) bilaterally semispinalis capitis
e) bilaterally splenius capitis
g) bilaterally longissimus capitis
i) spinalis capitis
