BIOL 230 - Unit 5 - Central Nervous System EXAM QUESTIONS WITH ANSWERS

BIOL 230 - Unit 5 - Central Nervous
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System EXAM QUESTIONS WITH |\ |\ |\ |\




ANSWERS

what part of the PNS carries information to the CNS and
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what part relays information from CNS to effector organs -
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CORRECT ANSWERS ✔✔afferent division - info to CNS
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efferent division - info from CNS
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what part of the PNS consists of fibres of motor neurons
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that innervate skeletal muscles - CORRECT ANSWERS
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✔✔somatic nervous system (SNS) |\ |\ |\




which part of the PNS consists of fibres that innervate
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smooth muscle, cardiac muscles, and glands - CORRECT
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ANSWERS ✔✔autonomic nervous system (ANS)
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what two parts of the ANS are responsible for "fight or
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flight" and "rest and digest" responses - CORRECT
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ANSWERS ✔✔sympathetic nervous system and
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parasympathetic nervous system |\ |\

,what are the three functional classes of neurons -
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CORRECT ANSWERS ✔✔afferent (sensory) |\ |\ |\




efferent (motor) |\




interneurons


which class of neurons relay sensory information from
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environment to CNS - CORRECT ANSWERS ✔✔afferent |\ |\ |\ |\ |\ |\ |\



neurons


where are cell bodies of afferent neurons located -
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CORRECT ANSWERS ✔✔outside the CNS |\ |\ |\ |\




what class of neurons relay info from CNS to effector
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organs - CORRECT ANSWERS ✔✔efferent neurons
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where are the cell bodies of efferent and interneurons
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located - CORRECT ANSWERS ✔✔in the CNS
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which type of neurons are only in the CNS and make up
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99% of all neurons, and where are they located -
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CORRECT ANSWERS ✔✔interneurons |\ |\




they are located between afferent and efferent neurons
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and integrate responses to peripheral information
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, which class of neurons are responsible for things
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associated with the mind (thinking, emotions, memory, |\ |\ |\ |\ |\ |\ |\



etc) - CORRECT ANSWERS ✔✔interneurons
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what 4 structures protect the CNS - CORRECT ANSWERS
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✔✔cranium and vertebral column |\ |\ |\




meninges
CSF
blood-brain barrier |\




a supply of what two things is essential for brain function
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- CORRECT ANSWERS ✔✔oxygen and glucose
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what is a type of connective tissue that occupies most of
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the CNS and act as supports for the interneurons -
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CORRECT ANSWERS ✔✔glial cells |\ |\ |\




do glial cells initiate or conduct nerve impulses -
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CORRECT ANSWERS ✔✔no |\ |\




what are 3 functions of glial cells - CORRECT ANSWERS
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✔✔- serve as connective tissue in CNS and support
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neurons