Accessory nerve disorder
Accessory Nerve Disorder
Accessory nerve disorder (pronunciation: ak-ses-uh-ree nərv dis-awr-der) is a medical condition that involves the dysfunction of the accessory nerve, also known as the eleventh cranial nerve or simply CN XI.
Etymology
The term "accessory" in accessory nerve disorder is derived from the Latin word "accessorius" which means additional. This is because the accessory nerve is considered an additional nerve that assists the main cranial nerves in their functions. The term "disorder" is derived from the Latin word "disordinare" which means to throw into disorder.
Definition
Accessory nerve disorder is a condition characterized by the impairment of the accessory nerve, which is responsible for controlling the sternocleidomastoid and trapezius muscles. This disorder can result in weakness or paralysis of these muscles, leading to difficulties in moving the head and shoulders.
Symptoms
Symptoms of accessory nerve disorder may include:
- Difficulty in moving the head and shoulders
- Weakness in the neck and shoulder muscles
- Pain in the neck and shoulders
- Difficulty in swallowing (dysphagia)
- Hoarseness or changes in voice (dysphonia)
Causes
Accessory nerve disorder can be caused by a variety of factors, including:
- Trauma or injury to the neck
- Surgical procedures in the neck region
- Tumors or growths that press on the accessory nerve
- Infections that affect the nerve
- Neurological conditions such as Multiple sclerosis
Treatment
Treatment for accessory nerve disorder primarily involves addressing the underlying cause. This may include:
- Physical therapy to strengthen the affected muscles
- Pain management techniques
- Surgical intervention in cases where a tumor or growth is pressing on the nerve
- Medications to manage symptoms in cases of neurological conditions
Related Terms
External links
- Medical encyclopedia article on Accessory nerve disorder
- Wikipedia's article - Accessory nerve disorder
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