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Peripheral Nervous System
Test Description: Test your knowledge of the PNS.
Instructions: Answer all questions to get your test result.
1) Efferent nerves of fibers carry what type of information?
A
motor responses.
B
both motor and sensory information.
C
neither motor nor sensory information.
D
sensory information.
2) The spinal nerves are connected to the spinal cord and consist of:
A
21 pairs.
B
41 pairs.
C
12 pairs.
D
31 pairs.
3) Damage to the ___ nerve could make the diaphragm unable to function.
A
axillary
B
medial cutaneous
C
radial
D
phrenic
4) Which of the following would not be an effector (target) of the autonomic nervous system?
A
iris of the eye
B
blood vessels
C
skeletal muscles
D
sweat glands
5) Which of the following is not an example of parasympathetic responses?
A
increased digestion
B
decreased heart rate
C
constriction of skeletal muscle blood vessels
D
dilation of the respiratroy airways
6) "Fight or Flight" physiological changes include all of the following except:
A
increased conversion of glycogen into glucose.
B
dilation of blood vessels in skeletal muscles
C
constriction of respiratory airways.
D
dilation of respiratory airways.
7) A child was frightened by a large dog. The pupils of the child's eyes becomes dilated, and the heart and respiratroy rates increase. These symptoms were caused by:
A
stimulation of somatic nervous system.
B
stimulation of the sympathetic nervous system.
C
stimulation of the occipital lobe.
D
stimulation of the parasympathetic nervous system.
8) Which of the following statements is not true.
A
The major function of the parasympathetic division is to serve as an "emergency" system
B
Under quiet, nonstressful conditions, acetylcholine is the major neurotransmittor being released.
C
The parasympathetic division is the dominant controller of most autonomic effectors (targets).
D
Parasympathetic stimulation causes an increase in digestion and salivary glands secretion.
9) If the ventral nerve root of a spinal nerve were destroyed, a person would lose:
A
sensory perception related to that pathway.
B
both motor responsed and sensory perception related to that pathway.
C
there would be no lose of function.
D
motor responses related to that pathway.
10) Which division of the peripheral nervous system controls voluntary movements?
A
sympathetic division
B
somatic division
C
parasympathetic division
D
autonomic division
*select an answer for all questions
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