Chapter 10: CNS Flashcards
Which sequence best represents a reflex arc from the stimulus to the response?
- effector
- integrating center
- motor neuron
- receptor
- sensory neuron
a. 3, 1, 4, 5, 2
b. 1, 5, 2, 3, 4
c. 4, 3, 2, 5, 1
d. 5, 2, 3, 4, 1
e. 4, 5, 2, 3, 1
e. 4, 5, 2, 3, 1
Which of the following would carry sensory nerve impulses?
a. spinothalamic tract
b. anterior root
c. lateral corticospinal tract
d. anterior gray horns
e. upper motor neurons
a. spinothalamic tract
The basal nuclei…
a. release melatonin to regulate individuals’ biological clock
b. help regulate muscle tone needed for specific movements.
c. are sometimes known as the “emotional brain”.
d. are masses of gray matter in the PNS.
e. are the sites where motor impulses cross over to the opposite side of the spinal cord.
b. help regulate muscle tone needed for specific movements.
Carpal tunnel syndrome is due to damage to a nerve in the:
a. lumbar plexus
b. cervical plexus
c. brachial plexus
d. cauda equina
e. sacral plexus
c. brachial plexus
A needle used in a spinal tap would penetrate (in order):
- arachnoid matter
- dura matter
- epidural space
- subarachnoid space
a. 1, 2, 3, 4
b. 2, 3, 1, 4
c. 3, 1, 4, 2
d. 3, 2, 1, 4
e. 4, 1, 2, 3
d. 3, 2, 1, 4
Axons of the lower motor neurons leave the CNS through the:
a. cerebellum
b. brain stem and spinal cord
c. cerebellum and midbrain
d. corticospinal tracts
e. cerebral hemispheres
b. brain stem and spinal cord
Which of the following statements about the blood supply to the brain is NOT true?
a. the brain needs a constant supply of glucose
b. the structure of the brain capillaries allows selective passage of certain materials from the blood into the brain.
c. the glucose brought to the brain can be stored for future use.
d. depriving brain neurons of oxygen for four minutes or more may cause permanent injury.
e. the brain requires about 20% of the body’s oxygen supply.
c. the glucose brought to the brain can be stored for future use.
After a car accident, Joe exhibits severe dizziness, difficulty in walking, and slurred speach. He may have damaged his…
a. cerebellum
b. pons
c. reticular activating system
d. fifth cranial nerve
e. midbrain
a. cerebellum
Which of the following is NOT a function of cerebrospinal fluid?
a. protection
b. circulation
c. conduction of nerve impulses
d. nutrition
e. waste removal
c. conduction of nerve impulses
Which part of the brain contains the centers that control the heart rate and breathing rhythm?
a. medulla
b. midbrain
c. cerebellum
d. thalamus
e. pons
a. medulla
The part of the brain that serves as a primary link between the nervous and endocrine systems is the…
a. thalamus
b. hypothalamus
c. pons
d. brain stem
e. cerebellum
b. hypothalamus
Which of the following is NOT a function of the hypothalamus?
a. regulate food intake
b. controls body temperature
c. regulates feelings of rage and aggression
d. helps establish sleep patterns
e. coordinates the startle effect
e. coordinates the startle effect
The part(s) of the brain concerned with memory, reasoning, judgement, and intelligance is (are) the…
a. sensory areas
b. limbic system
c. motor areas
d. cerebellum
e. association areas
e. association areas
A broad band of white matter that connects the two cerebral hemispheres is the…
a. corpus callosum
b. gyrus
c. insula
d. ascending tract
e. upper motor neurons
a. corpus callosum
The ringing of your alarm clock in the morning wakes you up by stimulating your…
a. thalamus
b. reticular activating system
c. Broca’s area
d. basal nuclei
e. spinal cord
b. reticular activating system
Put in the right word:
………. contains primary visual area that allows interpretation of shape and color
Occipital lobe
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………. receives impulses for smell
temporal lobe
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………. contains primary motor area that controls muscle movement
frontal lobe
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………. receives sensory impulses for touch, pain and temperature
parietal lobe
When entering a restaurant, you are bombarded with many different sensory stimuli. The part of the brain that combines all of those sensory inputs so that you can respond appropriately is the…
a. somatosensory association area
b. common integrative area
c. premotor area
d. Wernicke’s area
e. hypothalamus
b. common integrative area
Which cranial nerves contain only sensory fibers?
a. olfactory, optic and glossopharyngeal
b. optic and oculomotor
c. optic and trochlear
d. optic and olfactory
e. vagus and facial
d. optic and olfactory
Which cranial nerve(s) help(s) control swallowing?
a. glossypharyngeal
b. vagus
c. facial
d. hypoglossal
e. trochlear
a. glossypharyngeal, b. vagus and d. hypoglossal
Put in the right word:
………. :organization of white matter in the spinal cord
columns
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………. :absorb cerebrospinal fluid
arachnoid villi
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………. :extension of nerves beyond the end of the spinal cord
cauda equina
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………. : folds of the cerebral cortex
gyri
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………. :contains the sensory axons of a spinal nerve
posterior (dorsal) root
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………. : contains the motor axons of a spinal nerve
anterior (ventral) root
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………. :separates the cerebrum into right and left halves
longitudinal fissure
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………. :divides spinal cord into right and left sides
anterior median fissure
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………. :brain cavities where CSF circulates
ventricles
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………. :shallow grooves in the cerebrum
sulci
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………. :contains CSF in the spinal cord
central canal