do any cranial nerves cross over?
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It is important to remember that cranial nerves never cross (except for one exception, the 4th CN) and clinical findings are always on the same side as the cranial nerve involved.
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Your cranial nerves are pairs of nerves that connect your brain to different parts of your head, neck, and trunk. There are 12 of them, each named for their function or structure. Each nerve also has a corresponding Roman numeral between I and XII.
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The twelve cranial nerves, in order from I to XII are: olfactory nerve, optic nerve, oculomotor nerve, trochlear nerve, trigeminal nerve, abducens nerve, facial nerve, vestibulocochlear nerve, glossopharengeal nerve, vagus nerve, spinal accessory nerve, and hypoglossal nerve.
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In higher vertebrates (reptiles, birds, mammals) there are 12 pairs of cranial nerves: olfactory (CN I), optic (CN II), oculomotor (CN III), trochlear (CN IV), trigeminal (CN V), abducent (or abducens; CN VI), facial (CN VII), vestibulocochlear (CN VIII), glossopharyngeal (CN IX), vagus (CN X), accessory (CN XI), and ...
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There are two cranial nerves associated with the midbrain, the oculomotor (cranial nerve III) and the trochlear (cranial nerve IV).
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V. The trigeminal nerve is the largest of your cranial nerves and has both sensory and motor functions.
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The final four cranial nerves originate from the medulla oblongata: glossopharyngeal nerve (CN IX) vagus nerve (CN X) accessory nerve (CN XI)
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The peripheral nervous system refers to parts of the nervous system outside the brain and spinal cord. It includes the cranial nerves, spinal nerves and their roots and branches, peripheral nerves, and neuromuscular junctions.
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The peripheral nervous system refers to the parts of the nervous system that are outside the central nervous system, that is, those outside the brain and spinal cord. Thus, the peripheral nervous system includes. The nerves that connect the head, face, eyes, nose, muscles, and ears to the brain (cranial nerves)
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The hypoglossal nerve is mixed and involved in hearing. The only three cranial nerves that are purely sensory neurons include Olfactory (smell), Optic(sight), and Acoustic (hearing). Cranial nerves that are involved in motor movement only, include Vagus, spinal, hypoglossal, abducens, and trochlear.
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Cranial nerve XI, the spinal accessory nerve, innervates the sternocleidomastoid muscles and the upper portion of the trapezius. These muscles control turning the head to the side and shrugging of the shoulders.
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It includes the cranial nerves, spinal nerves and their roots and branches, peripheral nerves, and neuromuscular junctions. The anterior horn cells, although technically part of the central nervous system (CNS), are sometimes discussed with the peripheral nervous system because they are part of the motor unit.
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The four cranial nerves involved in vision and movement of the eyes are the optic (II) nerve, oculomotor (III) nerve, trochlear (IV) nerve and the abducen (VI) nerve. The optic nerve is the sensory nerve for vision. It transmits information from the eyes to the brain.
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The nerves are: the olfactory nerve (I), the optic nerve (II), oculomotor nerve (III), trochlear nerve (IV), trigeminal nerve (V), abducens nerve (VI), facial nerve (VII), vestibulocochlear nerve (VIII), glossopharyngeal nerve (IX), vagus nerve (X), accessory nerve (XI), and the hypoglossal nerve (XII).
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Myth: Crossing your eyes will make them stay like that. Fact: When you cross your eyes for humor or amusement it may cause a few laughs but it will not cause permanent damage to your eyes and once you are done your eyes will return to normal placement.
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['glossopharyngeal nerve (CN IX)', 'vagus nerve (CN X)', 'accessory nerve (CN XI)', 'hypoglossal nerve (CN XII)']
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There are three cranial nerves with primarily sensory function. Link to Sensory. Cranial nerve I, Olfactory, modulates smell, cranial nerve II, Optic,modulates vision. Cranial nerve VIII, Acoustovestibular, modulates hearing and balance.