Question | Answer |
....... paired cranial nerves arise from the brain and brainstem | 12 |
The Cranial nerves 1-12 supply... | Head and neck structures and some organs of the body. |
CN i = | Olfactory = responsible for smell/ sensory |
CN ii = | Optic = transfers visual information/ sensory |
CN iii = | Oculomotor = Innervates eye muscles that enable most movements (eyelids)/ motor |
CN iv = | Trochlear = innervates superior oblique muscle of eye / motor |
CN V = | Trigeminal = sensations in the face and motor functions such as biting and chewing/ Motor & sensory |
CN Vi = | Abducens = controls movement of lateral rectus muscle, responsible for gaze / Motor |
CN Vii = | Facial = controls muscles of facial expression / sensory & Motor |
CN Viii= | Vestibulocochlear = hearing and balance / sensory |
CN ix = | Glossopharyngeal = carries afferent sensory and efferent motor information (raising larynx & pharynx) / sensory & Motor |
CN X = | Vagus = Controls serveral muscles of the throat & voice box. regulates heart rate & keeps gastrointestinal tract in order / Sensory & motor |
CN Xi = | Accessory = supplies sternocleidomastoid & trapezius muscles / motor |
CN Xii = | Hypoglossal = enervates extrinsic muscles of the tongue /Motor |
What cranial nerves are located in the brain mid Medulla? | IX, X, XI, XII |
What cranial nerves are located in the midbrain? | III, IV |
What cranial nerves are located in the Pons? | V, VI, VII, VIII |
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