![]() ![]() – CN IV: Eye cannot look down when adducted – Test pursuit eye movement without head movement – Observe eye position, presence of strabismus (loss of ocular alignment) or ptosis of eyelid – Horner’s syndrome CN IV – Trochlear Nerve :įunction:Innervate the superior oblique eye muscle (moves the eye inferiorly and laterally) CN VI – Abducens Nerve:įunction: Innervate the lateral rectus muscle of eye (abducts the eye) – Test pupil constriction by shining a light in the eye ![]() Test:- Test pupil equality, size and shape Innervates the sphincter pupillae muscle (constricts the pupil), and the ciliary muscle (accomodate the eye for near vision) – Blindness, impaired vision: far (myopia) and near (presbyopia) optic nerve CN III – Oculomotor Nerveįunction:Innervates the inferior oblique muscle and medial, inferior, and superior rectus muscles of the eye (move the eye) levator palpebrae superioris muscle (elevate eyelid) Test:- Test visual acuity using a Snellen chart, test central and peripheral vision – Inability to detect smells (Anosmia) = temporal lobe lesions Olfactory-Nerve CN II – Optic Nerve : Test:- Test sense of smell by closing the other nostril and using non-irritating odors like coffee, lemon oil, etc Cranial Nerve’s function and tests: CN I – Olfactory Nerve : There are 12 pairs of cranial nerves and they are numbered according to their position of where they originate in the inferior surface of the brain. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |