If a muscle crosses the spinal joints of the neck posteriorly with a vertical orientation to its fibers,what action of the neck at the spinal joints will it most likely have?

Question

Quizplus · Accepted Answer

A muscle with vertical fibers that crosses the spinal joints of the neck posteriorly is likely to be the splenius capitis or semispinalis cervicis. Both of these muscles are known to extend the neck at the spinal joints. Therefore, the most likely action of this muscle is extension.

If a Muscle Crosses the Spinal Joints of the Neck