The spinal accessory nerve provides motor innervation to the trapezius and sternocleidomastoid muscles, which are responsible for head, neck, and shoulder movement. 9 To assess the function of the ...

It controls the sternocleidomastoid and trapezius muscles that allow a person to rotate, extend, and flex the neck and shoulders. The accessory nerve starts in the brain and separates into spinal ...

Neurogenic muscle hypertrophy in association with spontaneous motor-unit discharges is rare but well documented.3 It has been described in patients with chronic radiculopathy and radiation injury.4 In ...

The sternocleidomastoid is a large muscle in the neck that can cause pain behind the ear, down the side of the neck, or referred pain. Medical News Today Health Conditions ...

If you have a literal pain in the neck, there are things you can do to help identify, manage, and improve muscle pain. If you think or know you have sternocleidomastoid (SCM) pain, we explain some ...

A 23-year-old woman presented to clinic for evaluation of neck pain, right hand and ulnar forearm numbness and tingling. She reported several years of neck pain and right upper extremity &ldquo ...

the sternocleidomastoid muscle; a nerve called the accessory nerve; the internal jugular vein; You might have a radical neck dissection if the cancer has spread to other nearby structures. Side ...

Therapy is administered by the patient, using a handheld device the size of a mobile phone. The patient places the device on the side of the neck, over the cervical branch of the vagus nerve, ...