cranial nerves are part of the?
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The cranial nerves are considered components of the peripheral nervous system (PNS), although on a structural level the olfactory (I), optic (II), and trigeminal (V) nerves are more accurately considered part of the central nervous system (CNS).
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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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89 13.4 The Peripheral Nervous System Name the twelve cranial nerves and explain the functions associated with each. Describe the sensory and motor components of spinal nerves and the plexuses that they pass through.
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Emerging from between bones of the spine in the upper neck, the two greater occipital nerves make their way through muscles at the back of the head and into the scalp. They sometimes reach nearly as far forward as the forehead, but do not cover the face or the area near the ears; other nerves supply these regions.
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The function of the cranial nerves is for the most part similar to the spinal nerves, the nerves that are associated with the spinal cord. The motor components of the cranial nerves are derived from cells that are located in the brain.
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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 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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The somatic nervous system is a component of the peripheral nervous system associated with the voluntary control of the body movements via the use of skeletal muscles. ... Cranial nerves are responsible for carrying information in and out of the brain.
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Five cranial nerves have mixed sensory, motor and parasympathetic function. These five will be discussed in detail here. The mixed cranial nerves are CN III Occulomotor, CN V Trigeminal, CN VII Facial, CN IX Glossopharyngeal and CN X Vagus.
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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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Overview of the Spinal Nerves. Spinal nerves, a part of the peripheral nervous system (PNS), are mixed nerves that send motor, sensory, and autonomic signals between the CNS and the body.
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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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The nerves which arise from Brain are called as cranial nerves and nerves which arise from spinal cord are called as spinal nerves and they both are part of peripheral nervous system.
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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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Cranial nerves are generally named according to their structure or function. For example, the olfactory nerve (I) supplies smell, and the facial nerve (VII) supplies the muscles of the face.
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Overview. 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 central nervous system (CNS) is the part of the nervous system consisting primarily of the brain and spinal cord. ... ', 'The CNS consists of the two major structures: the brain and spinal cord. ... ', 'Microscopically, there are differences between the neurons and tissue of the CNS and the peripheral nervous system (PNS).']