Strength testing of these muscles can be measured during a neurological examination to assess function of the spinal accessory nerve.
12.
In the neck, the accessory nerve crosses the internal jugular vein around the level of the posterior belly of digastric muscle.
13.
:Not all neurons that form the part of the accessory nerve that supplies the trapezius need fire at the same time.
14.
The fibers that form the spinal accessory nerve are formed by lower motor neurons located in the upper segments of the spinal cord.
15.
Also, the sternocleidomastoid muscle, jugular vein, and accessory nerve are to be removed if such procedure allows apparently complete tumor resection.
16.
Consequently, the term " accessory nerve " usually refers only to nerve supplying the sternocleidomastoid and trapezius muscles, also called the spinal accessory nerve.
17.
Consequently, the term " accessory nerve " usually refers only to nerve supplying the sternocleidomastoid and trapezius muscles, also called the spinal accessory nerve.
18.
Through the foramen passes the medulla oblongata and its membranes, the accessory nerves, the posterior spinal arteries, and the tectorial membrane and alar ligaments.
19.
The cranial component rapidly joins the vagus nerve, and there is ongoing debate about whether the cranial part should be considered part of the accessory nerve proper.
20.
Secondary to serratus anterior palsy, a winged scapula is also caused by trapezius and rhomboid palsy involving the accessory nerve and the dorsal scapular nerve, respectively.
