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PDF Download FREE AND STUDY GAMES ABOUT A&P2 CH 22 EXAM
QUESTIONS
Actual Qs and Ans Expert-Verified Explanation
This Exam contains:
-Guarantee passing score -58 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation
Question 1: what are three examples of sympathetic stimulation?
Answer:
decreased secretion of the pancreas, constriction of the urinary sphincters, and dilation of skeletal muscle blood vessels
Question 2: The _____ division dominates during "rest and repair"
Answer:
parasympathetic Question 3: each efferent autonomic pathway is made up of ____ ____, ____ and ____
Answer:
autonomic nerves, ganglia, and plexuses Question 4: "fight or flight" physiologic changes include:
Answer:
increased conversion of glycogen to glucose, increased perspiration, and dilation of blood vessels in skeletal muscles
Question 5: _____ _____ neurons have cell bodies in nuclei in the brainstem or lateral gray columns of the sacral cord; they extend a considerable distance before synapsing with postganglionic neurons.
Answer:
Parasympathetic preganglionic neurons
Question 6: autonomic nervous system
Answer:
regulates body's involuntary effectors Question 7: Both _____ and _____ divisions are tonically active, meaning they continually conduct impulses to autonomic effectors
Answer:
Sympathetic and parasympathetic
Question 8: many _____ effectors are dually innervated
Answer:
autonomic Question 9: another name for the parasympathetic nervous system is:
Answer:
craniosacral
Question 10: These are clusters of neurons located at various levels in the
brain whose axons conduct impulses directly or indirectly to autonomic preganglionic neurons
Answer:
autonomic center
Question 11: The autonomic nervous system (ANS) has
______ and _____ components
Answer:
afferent (sensory) and efferent (motor)
Question 12: sympathetic ganglia located a short distance from the spinal cord are known as ____ ganglia
Answer:
collateral
Question 13: the _____ division is the dominant controller of the body at rest
Answer:
parasympathetic Question 14: some postganglionic axons return to a spinal nerve by way of a short branch called the gray _____
Answer:
ramus
Question 15: _____ and ______ can act to maintain the normal functioning of
doubly innervated autonomic effectors
Answer:
sympathetic and parasympathetic
Question 16: Somatic motor and autonomic pathways share what three things?
Answer:
direction of impulse conduction, effectors located outside the CNS, and acetylcholine as a possible neurotransmitter
Question 17: relaxes bladder
Answer:
sympathetic control
Question 18: constricts pupils
Answer:
parasympathetic control
Question 19: preganglionic neurons
Answer:
conduct impulses between the spinal cord and a ganglion
Question 20: Once inside the sympathetic chain ganglion, a preganglionic fiber may send ascending or descending branches through the _____ ____ to synapse with postganglionic neurons in other chain ganglia
Answer:
sympathetic trunk
Question 21: Epinephrine stimulates ______ receptors
Answer:
adrenergic
Question 22: increases secretion of digestive juices and insulin
Answer:
parasympathetic control Question 23: Autonomic centers function in a hierarchy in their control of the ANS, with the highest ranking being the autonomic centers in the ____ ____
Answer:
cerebral cortex
Question 24: somatic nervous system
Answer:
voluntary actions Question 25: _____ responses are usually widespread, involving many organ systems at once
Answer:
sympathetic Question 26: Dually innervated effectors continually receive both _____ and _____ impulses, and the summation of the two determines the controlling effect.
Answer:
sympathetic and parasympathetic Question 27: dendrites and cell bodies of sympathetic preganglionic neurons are located in the:
Answer:
gray matter of the thoracic and upper lumbar segments of the spinal cord
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