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The oculomotor nerve, also known as cranial nerve III, arises from the midbrain, specifically from the ventral aspect near the interpeduncular fossa. It emerges between the cerebral peduncles and then travels through the lateral wall of the cavernous sinus to innervate several eye muscles and control pupil constriction.
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What is the function of the oculomotor nerve?
oculomotor nerve control the muscle that move the eyeball.close visionMovement of the eyes.Focusing the eyes on close objects.
What cranial nerve is chiefly responsible for eye movements?
oculomotor, trochlear, abducens
Opening the eyes involves the what nerve?
Opening the eyes involves the cranial nerve called the oculomotor nerve (CN III). This nerve innervates the muscles responsible for raising the upper eyelid and controlling the pupil size.
Which cranial nerve is used when raising the eyebrows?
oculomotor
Cranial nerve raising eyelid?
number III. oculomotor
Does the oculomotor nerve have motor fibers?
Yes it is motor and parasympathetic.
Which cranial nerve control contraction of the circular smooth muscle of the iris?
The parasympathetic fibers of the oculomotor nerve (cranial nerve III) control the contraction of the circular smooth muscle of the iris, causing pupil constriction.
What nerve governs most of the extrinsic eye muscle?
Trochlear Nerve innervates Superior Oblique(extrinsic eye muscle)Oculomotor Nerve innervates Inferior Oblique, Superior Rectus, Inferior Rectus, and Medial Rectus (which are all extrinsic eye muscles) along with Ciliary Body, and the Iris (which are both intrinsic eye muscles)Abducens Nerve innervates Lateral Rectus(extrinsic eye muscle)
What cranial nerve involved while raising eye lids and focusing the lens of the eye for accommodation?
The cranial nerve involved in raising the eyelids is the oculomotor nerve (cranial nerve III). For focusing the lens of the eye for accommodation, the oculomotor nerve controls the ciliary muscle.
The oculomotor nerve controls most of the movement of what part of your body?
Eye
Can External strabismus and ptosis be caused by damage to the oculomotor nerve?
yes
What part of the brain contains nerve centers which help control eye movement and the size of the pupils?
Oculomotor Nerve
