These Posterior Neck Muscles Extend, Rotate, and Laterally Flex the Cervical

Question

These posterior neck muscles extend, rotate, and laterally flex the cervical vertebrae.
A) Iliocostalis group
B) Splenius group
C) Spinalis group
D) Longissimus group
E) None of the answers are correct.

Accepted Answer

The muscles in the splenius group are responsible for extending, rotating, and laterally flexing the cervical vertebrae. The muscles in the other groups listed primarily extend and laterally flex the spine, but do not have as much function in rotating the cervical vertebrae.