For effective control of motor output, what two types of muscle proprioceptors are needed by the CNS?
a. muscle spindles and Golgi tendon organs
b. muscle spindles and stretch receptors
c. sarcoplasmic reticulum and Golgi tendon organs
d. sarcomeres and Golgi tendon organs
e. sarcomeres and stretch receptors
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Question 2) Sensory information travels from the spinal cord to the brain via
a. afferent pathways
b. efferent pathways
c. ascending tracts
d. descending tracts
e. the dorsal root ganglion
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Question 3) Damage to the cerebellum or basal nuclei results in ____.
a. spastic paralysis
b. flaccid paralysis
c. tetanus
d. clumsy movement
e. cerebral palsy
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Question 4) The peripheral nervous system has
a. 12 cranial nerves and 20 spinal nerves
b. only a few tracts
c. 24 cranial nerves and 31 spinal nerves
d. 24 cranial nerves and 62 spinal nerves
e. 12 cranial nerves and 31 spinal nerves
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Question 5) Loss of descending inhibitory inputs on motor neurons may result in ____.
a. spastic paralysis
b. flaccid paralysis
c. tetanus
d. clumsy movement
e. cerebral palsy
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Question 6) Nerves
a. contain afferent nerve fibers
b. contain efferent nerve fibers
c. are present within the peripheral nervous system
d. do not contain complete neurons
e. exhibit all of the above characteristics
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Question 7) What do the basal nuclei coordinate?
a. slow twitch muscle fibers
b. spinal reflexes
c. slow, sustained movement
d. fast movement
e. fast twitch muscle fibers
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Question 8) Ascending tracts
a. relay messages from the spinal cord to efferent neuron cell bodies
b. carry impulses from nerves to the CNS
c. carry impulses from the CNS to nerves
d. are part of the peripheral nervous system
e. transmit signals from afferent neurons to the brain
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Question 9) What plays a key role in mediating performance of fine, discrete, voluntary movements of the hands and fingers?
a. premotor area
b. supplementary motor area
c. multineuronal system
d. corticospinal system
e. the pons
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Question 10) Identify the true statement(s).
a. Slow-wave sleep occupies a greater percentage of time than paradoxical sleep.
b. It is harder to fall asleep when fully awake than to stay awake when sleepy.
c. Slow-wave sleep is characterized by frequent shifts in body position.
d. Sleep-on neurons in the slow-wave sleep center bring on sleep.
e. All of the above
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