The third cranial nerve which controls the eyeballs and eyelids.
One of a pair of motor nerves, the third of cranial nerves, essential for eye movement.
The third cranial nerve, which functions primarily to send impulses to the muscles of the eyes and eyelids in order to direct movement.
The third cranial nerve (III), which is composed of motor fibers distributed to muscles in an around the eye. Fibers of the parasympathetic system are responsible for altering the size of the pupil and the lens of the eye. Fibers outside the eye run to the upper eyelid and to muscles that turn the eyeball in different directions.
A nerve that innervates the superior, inferior, and medial rectus and the inferior oblique muscle of the eye (for movement of the eyeball), the levator palpebrae superioris of the eyelid (for raising upper eyelid), the ciliary muscle (for contraction for near vision), and the sphincter muscle fibers of the iris (for pupillary constriction). It originates in the midbrain and consists of somatic and visceral efferent fibers and somatic afferent fibers.
The oculomotor nerve, the third cranial nerve, governs the majority of the eye’s muscle movements. Additionally, it provides innervation to the pupil-constricting muscle, the upper eyelid-raising muscle, and the ciliary muscle responsible for focusing the eye.
Damage to the oculomotor nerve can arise from factors such as a skull base fracture or the presence of a tumor. Indications of oculomotor nerve impairment encompass ptosis (drooping upper eyelid), strabismus (misalignment of the eyes), pupil dilation, diminished eye focusing ability, diplopia (double vision), and a minor bulging of the eyeball.