Term
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Definition
| specialized cell, dendrite, or organ that responds to specific stimuli in the extracellular environment and who stimulation alters level of activity in a sensory neuron |
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Term
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Definition
| a muscle, gland, or other specialized cell or organ that responds to neural stimulation by altering its activity and producing a specific effect |
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Term
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Definition
| pertaining to control of skeletal muscle activity (____ motor) or sensory information from skeletal muscles, tendons, and joints (_______ sensory) |
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Term
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Definition
| pertaining to control of functions, such as digestion, circulation, etc. (_______ motor) or sensory information from ________ organs (_______ sensory) |
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Term
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Definition
| sudden, transient changes in membrane potential that are propagated along the surface of an axon or sarcolemma |
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Term
| central nervous system (CNS) |
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Definition
| contains brain and spinal cord; integrative and control centers |
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Term
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Definition
| what body cavity is the central nervous system found in? |
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Term
| peripheral nervous system (PNS) |
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Definition
| contains the cranial nerves and spinal nerves; communication lines between CNS and rest of body |
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Term
sensory (afferent) division
motor (efferent) division |
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Definition
| what are the 2 different divisions of the peripheral nervous system? |
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Term
| sensory (afferent) division |
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Definition
| somatic and visceral sensory nerve fibers; conducts impulses from receptors to CNS |
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Term
| motor (efferent) division |
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Definition
| motor nerve fibers; conducts impulses from CNS to effectors (muscles and glands) |
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Term
Autonomic nervous system (ANS)
Somatic Nervous system |
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Definition
| what are the 2 systems of the motor (efferent) division of the PNS? |
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Term
| autonomic nervous system (ANS) |
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Definition
| involuntary (visceral motor); conducts impulses from CNS to cardiac muscles, smooth muscles, and glands |
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Term
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Definition
| voluntary (somatic motor); conducts impulses from CNS to skeletal muscle |
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Term
sympathetic division
parasympathetic division |
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Definition
| what are the 2 divisions of the autonomic nervous system? |
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Term
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Definition
| mobilizes body systems during emergency situations; fight or flight system |
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Term
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Definition
| conserves energy; promotes nonemergency functions; rest and digest system |
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