Where does the splenius cervicis muscle insert?

The splenius cervicis muscle inserts at the posterior tubercles of the transverse processes of the upper three cervical vertebrae, specifically C1 to C3. This insertion point is crucial for the muscle's function, as it facilitates the rotation and extension of the neck. The insertion on the transverse processes allows the splenius cervicis to play a significant role in neck movements by providing the necessary leverage to affect the cervical spine's position.

Understanding the anatomy of the splenius cervicis can help in recognizing how injuries or dysfunctions in this area can influence mobility and muscle coordination in the neck. This aspect is particularly relevant in contexts such as rehabilitative therapies and orthopedic assessments, where understanding muscle insertions can inform treatment protocols.