Term
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Definition
| Includes brain and spinal cord |
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Term
| Peripheral Nervous System |
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Definition
| peripheral nerves - 2 parts |
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Term
| Sensory Divison of the Peripheral Nervous System |
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Definition
| sends information to the CNS |
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Term
| The Motor Division of the Peripheral Nervous System |
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Definition
| sends info from CNS to muscles or glands. 2 subdivisons. |
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Term
| Autonomic Nervous System of the Motor Divison of the Peripheral Nervous System |
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Definition
| automatic responses and regulatory functions. Controls smooth muscle, cardiac muscle, and glands. 2 subdivisons. |
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Term
| Sympathetic Nervous System of the Autonomiv Nervous System of the Motor Division of the Peripheral nervous system |
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Definition
| involved in fight or flight |
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Term
| parasympathetic nervous system of the autonomic nervous system of the motor division of the peripheral nervous system. |
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Definition
| involved in resting and digesting |
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Term
| somatic nervous system of the motor dicision of the peripheral nervous system |
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Definition
| voluntary control. control skeletal muscle. |
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Term
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Definition
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Term
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Definition
| many of these and branched. they receive information from other neurons or from the environment and conduct impules to the cell body of the neuron. |
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Term
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Definition
| contains organells, necessary for life of neuron. cell bodies found in CNS |
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Term
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Definition
| only one per neuron. conduct impulses (actin potentials or nerve messages) away from cell body of neuron |
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Term
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Definition
| supporting cells. they support and help the neurons - several types: |
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Term
| schwann cells (neuroglia) |
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Definition
| wrap around axons to insulate |
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Term
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Definition
| surround vessels, contribute to the blood barriers |
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Term
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Definition
| injury responsive scavangers - keep the area around the neurons clean |
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Term
| oligodendrocyte (neuroglia) |
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Definition
| wrap around axons of multiple cells to insulate thsoe axons. |
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Term
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Definition
| according to direction they carry info |
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Term
| sensory neurons - Afferent |
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Definition
| take info from receptors to the CNS |
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Term
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Definition
| occur within the CNS and integrate the input |
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Term
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Definition
| take info from the CNS to muscles and glands. |
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Term
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Definition
| made of many axons bundled together, covered with fibrous connective tissue. |
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Term
| endoneurium - nerve covering |
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Definition
| surrounfs individual fibers within a nerve |
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Term
| perineurium - nerve convering |
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Definition
| surrounds a group (facicle) of nerve fibers |
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Term
| Epineurium - nerve covering |
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Definition
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