Muscle, Splenius Cervicis (M. Splenius Cervicis, Pna, Bna, Jna)

The neck muscles, located under the layer of skin that contains blood vessels and nerves, are made up of muscle fibers. Flexion and extension of the head can be caused by the movement of this muscle group. Therefore, the movement of the neck muscles requires muscle coordination with other groups of the neck. This coordination of movements involves contraction or relaxation of the trapezius muscles, long dorsi muscles, and increased internal rotation of the scapula (including the superior one). Below is a list of a few neck muscles that I know of.

Clinical applications of neck muscles are hernia mechanisms and spondylolisthesis. The results of physical rehabilitation using exercises for the neck muscles should improve the function of the autonomic nervous system, namely the function of the cervical vertebrae associated with the blood supply to the upper extremities. Head and neck extensor exercises improve coordination of muscle movement around the skull and neck joint. Their function: These are the muscles that extend and rotate the head relative to the body, helping with situations such as free movement of the head during sleep. The muscles that perform these functions are located on the undersurface of the muscle located along the front of the neck, at the top of the spine. Thus, slouching posture leads to weakness and imbalance of these muscles