The trochlear nerve, also known as cranial nerve 4 (CN IV), controls the superior oblique muscle in your eye. This muscle allows you to move your eyeball down and shift your gaze from side to side.

The glossopharyngeal nerve provides motor function to the stylopharyngeus muscle. Located in the pharynx, which is the portion of your throat behind the nose and mouth, this muscle is involved in ...

Understanding oculomotor nerve anatomy and symptoms of oculomotor nerve injury can ... The cranial nerves start near the back of the brain and travel to muscles and organs in your head, neck, ...

This article looks at the anatomy of the back, including bones, muscles, and nerves. It also covers some common conditions and injuries that can affect the back.

Pain in the hand, neck, or other areas of the body may indicate a pinched nerve. But a similar discomfort can be felt with a muscle pull. So, how do you figure out what is what? Speaking with the ...

If you have a pinched nerve in the neck, doing exercises can help. These seven stretches relieve mild pain by decompressing the nerve and loosening tight muscles.

Cervical radiculitis, sometimes called cervical radiculopathy, happens when a nerve in your upper spine is pushed on or inflamed. Informally, it’s usually called a pinched nerve in your neck.

Levator Scapula Stretch. Why: Your levator scapula muscle attaches at both the neck and the shoulder, and tightness in it can be a common cause of nerve pinches that moves pain down the arm.This ...

Electrodiagnostic tests measure the electrical activity that your muscles and nerves produce. These tests help identify the areas of degenerative disease in your spine. Steroid injections pinpoint ...

Muscle pain is far more common than nerve pain, Tankha says. "But it's difficult to differentiate between the two — even for physicians — because there's overlap in terms of how they feel," he ...

Common Causes of Neck-Related Shoulder Pain 1. Text Neck Syndrome. Cause: Slouching over phones, laptops, or tablets for hours. Effect: Strains neck muscles, compresses nerves, and triggers ...