The selective neck dissection procedure involves the preservation of the:

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The selective neck dissection procedure involves removal of certain lymph nodes in the neck while preserving specific nerves and blood vessels. The spinal accessory nerve, also known as cranial nerve XI, is responsible for movement of the trapezius and sternocleidomastoid muscles in the neck and should be preserved during the procedure. The spinal accessory nerve is the nerve that innervates the sternocleidomastoid and trapezius muscles. It is important to preserve this nerve during a selective neck dissection to maintain shoulder function and prevent shoulder droop. The hypoglossale nerve is not closely related to the neck dissection and is responsible for tongue movement. The vagal nerve is a major nerve that has many functions including innervating the larynx and controlling heart rate but is also not typically the focus of a selective neck dissection. The trigeminal nerve is not in the neck, but is responsible for sensation in the face and motor function of the muscles of mastication.

The Selective Neck Dissection Procedure Involves the Preservation of The