C.10 Nervous System
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| show | Central Nervous System
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| show | Peripheral Nervous System
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| Consists of sensory neurons that convey information from receptors in the periphery of the body to brain and spinal cord. | show 🗑
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| show | Efferent Peripheral System
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| Conducts impulses from the brain and spinal cord to skeletal muscle, causing us to react to changes in environment. | show 🗑
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| Conducts impulses from the brain and spinal cord to smooth muscle tissue, to cardiac muscle tissue, and to glands. | show 🗑
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| show | Sypathetic division
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| show | Parasympathetic division
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| show | Neurons
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| show | Nerve
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| Cells that perform support and protection | show 🗑
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| show | Astrocytes
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| Provide support, connection, and produce the fatty myelin sheath on the neurons of the brain and spinal cord in the CNS | show 🗑
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| show | Microglia
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| show | Ependymal cells
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| Located only in the PNS and make up the neurilemma and myelin sheath | show 🗑
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| Ribosomes attached to the ER, also called chromatophilic substance, where protein synthesis occurs | show 🗑
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| show | Dendrites
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| show | Axon
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| show | Axon terminals
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| Have several dendrites and one axon. Most neurons in brain and spinal cord are this type. | show 🗑
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| Single cells called Schwann cells aka ______ | show 🗑
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| Gaps in the myelin sheath | show 🗑
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| show | Bipolar neurons
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| show | Unipolar neuron
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| 1st nerve cell receiving impulse, unipolar | show 🗑
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| 2nd nerve cell receiving impulse, multipolar, transmit sensory impulse to appropriate part | show 🗑
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| Final cell receiving impulse, multipolar, brings about the reaction to the stimulus | show 🗑
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| The ionic and electrical charge around a nerve fiber that is not transmitting an impulse. | show 🗑
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| Reversal of electrical charge | show 🗑
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| Restoration of original charge to the nerve cell | show 🗑
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| show | Synapses
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| show | Reflex
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| show | Reflex arc
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| Groups of myelinated axons from many neurons supported by neuroglia | show 🗑
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| show | Gray matter
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| show | Cortex
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| Nerve cell bodies grouped together outside the CNS | show 🗑
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| Bundle of fibers inside the CNS | show 🗑
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| show | Nucleus
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| Areas of gray matter in the spinal cord | show 🗑
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| A series of connective tissue membranes | show 🗑
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| Outermost spinal meninx, "tough mother" | show 🗑
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| show | Arachnoid layer
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| Innermost spinal meninx, "delicate mother" | show 🗑
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| show | Posterior/dorsal root
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| Motor root, contains only motor nerves | show 🗑
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c_bereznay
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