3. Functional Organization of the Nervous System Flashcards

1
Q

What is the sensory function of the nervous system and what portion of the nervous system carries it out?

A

receiving information; peripheral nervous system

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2
Q

What is the integrative function of the nervous system and what portion of the nervous system carries it out?

A

processing information; central nervous system

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3
Q

What is the motor function of the nervous system and what portion of the nervous system carries it out?

A

acting on the information; peripheral nervous system

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4
Q

What are motor neurons?

A

neurons that carry information from the nervous system towards organs which can act on the information

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5
Q

What are the two types of effectors?

A

muscles and glands

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6
Q

What are efferent neurons?

A

neurons that carry information away from the CNS and innervate effectors

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7
Q

What are afferent/sensory neurons?

A

carry information towards the CNS

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8
Q

What is a reflex?

A

direct motor response to a sensory input which occurs without conscious thought

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9
Q

What is a monosynaptic reflex arc?

A

reflex involving only two neurons an one synapse

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10
Q

What is an inhibitory interneuron?

A

short neuron which forms an inhibitory synapse with a motor neuron

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11
Q

What is reciprocal inhibition?

A

concurrent relaxation of one muscle and contraction of another

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12
Q

What are the two divisions of the PNS?

A

somatic
autonomic

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13
Q

What is the somatic division of the PNS?

A

conscious sensation and deliberate, voluntary material

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14
Q

What is the autonomic divsion of the PNS?

A

involuntary processes such as digestion, metabolism, circulation, and perspiration

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15
Q

What are the two subdivisions of the autonomic division?

A

sympathetic
parasympathetic

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16
Q

What is the sympathetic division?

A

fight or flight

17
Q

What is the parasympathetic division?

A

rest and digest