HCS 212 UPDATED ACTUAL QUESTIONS
AND CORRECT ANSWERS
COMPREHENSIVE STUDY GUIDE FULL
SOLUTION
●● In the ANS
A) preganglionic fibers innervate the peripheral organs.
B) preganglionic fibers are unmyelinated.
C) there is always a synapse between the CNS motor neuron and the
peripheral effector.
D) motor neuron pathways synapse in the same patterns as in the
somatic nervous system.
E) None of the answers are correct.
Answer: c
●● The autonomic division of the nervous system directs
A) voluntary activity.
B) conscious control of skeletal muscles.
C) behavior.
D) emotions.
E) processes that maintain homeostasis.
Answer: e
,●● In the autonomic nervous system
A) the lower motor neuron directly controls the effector organ.
B) there is always a synapse located between the CNS and the effector
organ.
C) motor neurons do not synapse but are connected by communicating
junctions.
D) some motor neurons release both ACh and NE.
E) None of the answers are correct.
Answer: b
●● The major divisions of the autonomic nervous system (ANS) include
A) the conscious and unconscious nervous systems.
B) the sympathetic and parasympathetic divisions.
C) pre- and postganglionic fibers.
D) the voluntary and involuntary divisions.
E) None of the answers are correct.
Answer: b
●● Norepinephrine released from the sympathetic fibers is usually
A) inhibitory.
B) reverberating.
C) excitatory.
,D) long lasting.
E) None of the answers are correct.
Answer: c
●● The most widely used neurotransmitter in the ANS is
A) NE.
B) epinephrine.
C) ACh.
D) GABA.
E) All of the answers are correct.
Answer: c
●● Tissue responses to neurotransmitters
A) are always excitatory.
B) result from opening ion channels.
C) are always inhibitory.
D) vary depending upon the response of the membrane receptor to the
presence of the neurotransmitter.
E) result from the formation of second messengers.
Answer: d
●● Which of the following applies to postganglionic neurons of the ANS
sympathetic division?
, A) Their cell bodies are located between spinal segments T1 and L2.
B) Their cell bodies are situated in the lateral gray horns of the spinal
cord.
C) Their axons synapse with the peripheral effector organs.
D) Their axons emerge along the ventral roots of the spinal cord between
segments T1 and L2.
E) Some fibers do not synapse until the collateral ganglia.
Answer: c
●● Generally speaking, the ANS
A) causes relatively short-term changes.
B) is always active.
C) can inhibit or activate an organ.
D) releases several different neurotransmitters.
E) All of the answers are correct.
Answer: e
●● In the autonomic nervous system two neurons are used outside of the
CNS, whereas in the somatic nervous system ________ neuron(s) are
used outside of the CNS.
A) zero
B) one
C) three
AND CORRECT ANSWERS
COMPREHENSIVE STUDY GUIDE FULL
SOLUTION
●● In the ANS
A) preganglionic fibers innervate the peripheral organs.
B) preganglionic fibers are unmyelinated.
C) there is always a synapse between the CNS motor neuron and the
peripheral effector.
D) motor neuron pathways synapse in the same patterns as in the
somatic nervous system.
E) None of the answers are correct.
Answer: c
●● The autonomic division of the nervous system directs
A) voluntary activity.
B) conscious control of skeletal muscles.
C) behavior.
D) emotions.
E) processes that maintain homeostasis.
Answer: e
,●● In the autonomic nervous system
A) the lower motor neuron directly controls the effector organ.
B) there is always a synapse located between the CNS and the effector
organ.
C) motor neurons do not synapse but are connected by communicating
junctions.
D) some motor neurons release both ACh and NE.
E) None of the answers are correct.
Answer: b
●● The major divisions of the autonomic nervous system (ANS) include
A) the conscious and unconscious nervous systems.
B) the sympathetic and parasympathetic divisions.
C) pre- and postganglionic fibers.
D) the voluntary and involuntary divisions.
E) None of the answers are correct.
Answer: b
●● Norepinephrine released from the sympathetic fibers is usually
A) inhibitory.
B) reverberating.
C) excitatory.
,D) long lasting.
E) None of the answers are correct.
Answer: c
●● The most widely used neurotransmitter in the ANS is
A) NE.
B) epinephrine.
C) ACh.
D) GABA.
E) All of the answers are correct.
Answer: c
●● Tissue responses to neurotransmitters
A) are always excitatory.
B) result from opening ion channels.
C) are always inhibitory.
D) vary depending upon the response of the membrane receptor to the
presence of the neurotransmitter.
E) result from the formation of second messengers.
Answer: d
●● Which of the following applies to postganglionic neurons of the ANS
sympathetic division?
, A) Their cell bodies are located between spinal segments T1 and L2.
B) Their cell bodies are situated in the lateral gray horns of the spinal
cord.
C) Their axons synapse with the peripheral effector organs.
D) Their axons emerge along the ventral roots of the spinal cord between
segments T1 and L2.
E) Some fibers do not synapse until the collateral ganglia.
Answer: c
●● Generally speaking, the ANS
A) causes relatively short-term changes.
B) is always active.
C) can inhibit or activate an organ.
D) releases several different neurotransmitters.
E) All of the answers are correct.
Answer: e
●● In the autonomic nervous system two neurons are used outside of the
CNS, whereas in the somatic nervous system ________ neuron(s) are
used outside of the CNS.
A) zero
B) one
C) three
