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BIO 253 FINAL EXAM FINAL COMPREHENSIVE ASSESSMENT TEST PAPER QUESTIONS AND SOLUTIONS

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BIO 253 FINAL EXAM FINAL COMPREHENSIVE ASSESSMENT TEST PAPER QUESTIONS AND SOLUTIONS

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BIO 253 FINAL EXAM FINAL
COMPREHENSIVE ASSESSMENT TEST
PAPER QUESTIONS AND SOLUTIONS

⩥ What is the function of the CNS.
Answer: Integrated control center


⩥ What does a pns consist of.
Answer: Cranial and spinal nerves


⩥ What is the function of the pns.
Answer: Communication lines between CNS and the rest of the body


⩥ What sends impulses to The pns.
Answer: Sensory division (afferent)


⩥ What sends impulses from CNS to effector (muscles or glands).
Answer: ...efferent


⩥ Autonomic nervous system.
Answer: Involuntary (viseral motor)

, Conducts impulses from CNS to cardiac muscles smooth muscles and
glands


⩥ Somatic nervous system.
Answer: Voluntary


Conducts impulses from CNS to skeletal muscle


⩥ Local potential (receptor potential) what does it do.
Answer: Stimulates gated sodium ion channel


⩥ What do you need to do for stimulated gates to open.
Answer: Cell needs to reach threshold


⩥ Can you simulate neuron during absolute refractory period or
hyperpolarization.
Answer: No


⩥ Can you simulate neuron during relative refractory time.
Answer: Yes but you need a powerful stimulus

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