If a muscle crosses the atlanto-occipital joint anteriorly with a vertical orientation to its fibers,what eccentric function of the head at the atlanto-occipital joint will it most likely have?

Question

Quizplus · Accepted Answer

Muscles that cross a joint anteriorly and have a vertical orientation primarily act in the opposite direction of their placement. Therefore, a muscle crossing the atlanto-occipital joint anteriorly would act to control or slow down the movement of extension, as it would be elongating during this movement.

If a Muscle Crosses the Atlanto-Occipital Joint Anteriorly with a Vertical