Term
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Definition
| The brain and spinal cord. |
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Term
| Peripheral Nervous System |
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Definition
| a system of nerves that connects the outlying parts of the body to the CNS |
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Term
| Afferent (sensory) Division |
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Definition
| consists of nerve fibers that convey impulses to the central nervous system from sensory receptors located in carious parts of the body |
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Term
| Efferent (mottor) division |
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Definition
| carries impulses from the CNS to effector organs, the muscles and glands |
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Term
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Definition
| allows us to consciously or voluntarily control our skeletal muscles |
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Term
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Definition
| regulates events that are autonomic or involuntary |
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Term
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Definition
| supporting cells in CNS that generally support, insulate, and protect delegate neurons |
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Term
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Definition
| abundent star shaped cells that account for nearly half the neural tissue |
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Term
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Definition
| spiderlike phagocytes that dispose of debris including dead brain cells and bacteria |
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Term
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Definition
| cells taht line the cavities of the brain and the spinal cord , helps to circulate cerebral spinal fluid |
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Term
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Definition
| glia that wrap their flat extentions tightly around the nerve fibers producing insulating myelin sheaths |
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Term
| Schwann Cells form the myelin sheaths around nerve fibers found in PNS |
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Definition
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Term
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Definition
| cells of the nervous system specialized to transmit messages throughout the body |
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Term
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Definition
| rough er abundent in the cell body |
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Term
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Definition
| neuron proceesses that convey incoming messages toward the cell body |
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Term
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Definition
| neuron processes that convey messages away from the cell body |
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Term
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Definition
| chemicals found in the membranous sacs of axonal treminals |
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Term
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Definition
| a tiny gap between each axonal terminals |
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Term
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Definition
| a tight coil of wrapped membrane |
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Term
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Definition
| gaps or intentionsin the myelin sheaths |
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Term
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Definition
| neurons with both an axon and a dentrite |
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Term
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Definition
| has only a axon or dentrite emerging from the cell body |
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Term
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Definition
| the most superior part of the brain divided in the middle of the brain |
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Term
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Definition
| ridges of tissue on the cerebral hemispheres |
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Term
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Definition
| shallow grooves in between the gryi |
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Term
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Definition
| a spealized area that is very iinvolved in our ability to speak |
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Term
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Definition
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Term
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Definition
| a large caulifolwer object |
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Term
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Definition
| outermost membrane convering and protecting the CNS |
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Term
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Definition
| the middle meniginal layer (cobweb |
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Term
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Definition
| the innermost membrane clings to surface of brain |
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Term
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Definition
| occurs with slight brain injury , no perminate damage |
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Term
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Definition
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Term
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Definition
| a collection of spinal nerves at the inferior end of the vertibral canal(horse tail) |
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Term
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Definition
| a division of the autonomic nervous system,opposes parasympathetic functions (fight or flight |
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Term
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Definition
| a division of the autonomic nervous system (craniosucral division |
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