NEET PG DENTAL EXAM

Detailed explanation-1: -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.

Detailed explanation-2: -Cranial nerve 4, also called the trochlear nerve, controls the movement of the superior oblique muscle. This muscle moves the eye down and rotates the top of the toward the nose. It also helps pull the eye outward when the eye is looking downward.

Detailed explanation-3: -Diseases or injuries to the fourth cranial nerve can cause the superior oblique muscle to be paralyzed. The name for this condition is fourth nerve palsy. Other names for it are superior oblique palsy and trochlear nerve palsy. You may have fourth nerve palsy from birth, or you may develop it later.