Reflexes_and_Autonomic_Nervous_System_St

Reflexes_and_Autonomic_Nervous_System_St - Reflexes and...

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Reflexes and Autonomic Nervous System Study Questions (Select the single BEST answer) 1. Which of the following is located entirely within the central nervous system? A) afferent neurons B) efferent neurons C) interneurons D) A and B E) A, B, and C 2. Because of reciprocal innervation, during the withdrawal reflex (or flexor reflex) that moves the hand from a hot stove or a foot from a sharp tack, when ______ occur in the motor neurons going to the agonist (to cause removal of the hand or foot), _______ occur in the motor neurons going to the antagonist. A) EPSPs, EPSPs B) IPSPs, IPSPs C) EPSPs, IPSPs D) IPSPs, EPSPs 3. The effectors of all reflexes are skeletal muscles. A) true B) false 4. Which of the following is NOT required for a patellar tendon (knee-jerk) reflex? A) afferent pathway B) efferent pathway C) effector D) interneuron E) receptor 5. The autonomic nervous system controls which of the following? A) smooth muscle B) cardiac muscle C) both A and B D) neither A nor B 6. Which of the following requires a relay of 2 neurons to reach the effector? A) autonomic nervous system B) somatic nervous system C) both A and B D) neither A nor B 7. Fibers of which division of the autonomic nervous system are found in Cranial Nerve X (the Vagus nerve)? A) parasympathetic B) sympathetic C) both A and B D) neither A nor B 8. Which of the following secretes acetylcholine? A) preganglionic sympathetic fibers B) postganglionic parasympathetic fibers C) preganglionic parasympathetic fibers D) B and C E) A, B, and C 9. Dual innervation is ________________ for autonomic antagonism. A) usually not required B) required 10. Which receptor type is located at the autonomic ganglia and on skeletal muscle? A) muscarinic B) nicotinic C) β 1 (beta-1) D) α 1 (alpha-1) E) none of these 11. Which area of the brain listed affects autonomic responses? A) hypothalamus B) cerebral cortex C) medulla of the brain stem D) all of these E) all except B 12. The autonomic nervous system A) is made up of motor neurons B) exerts only excitatory effects on the organs it innervates C) both A and B D) neither A nor B 13. Which of the following does NOT normally occur during the "fight or flight" reaction? A) increased blood epinephrine levels B) increased blood glucose levels C) decreased metabolic rate D) increased heart rate 14. Which division of the autonomic nervous system causes the "fight or flight" reaction? A) sympathetic B) parasympathetic C) both A and B D) neither A nor B
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15. Which division of the autonomic nervous system is most active during quiet, relaxed situations (like reading a book in an easy chair)? A) sympathetic B) parasympathetic 16. Which of the following is a parasympathetic effect? (That is, which below occurs with parasympathetic stimulation?) A) dilation of lung airways (tubes) B) increased peristalsis in the GI tract C) both A and B D) neither A nor B 17. Which of the following is a sympathetic effect? (That is, which below occurs with sympathetic stimulation?) A) adjustment for near vision
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This note was uploaded on 03/18/2008 for the course PSL 250 taught by Professor Denison during the Spring '08 term at Michigan State University.

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Reflexes_and_Autonomic_Nervous_System_St - Reflexes and...

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