The primary somatic sensory or general sensory area is located in
A. the postcentral gyrus.
B. the precentral gyrus.
C. the prefrontal gyrus.
D. the central sulcus.
E. the superior temporal gyrus.
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Question 2) When the CNS responds to tissue damage by decreasing the pain threshold and increasing its sensitivity to pain, this is called
A. referred pain.
B. central sensitization.
C. peripheral sensitization.
D. cumulative sensitization.
E. phantom pain.
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Question 3) Amputees frequently perceive pain in the amputated structure. This type of pain is called
A. chronic pain.
B. phantom pain.
C. referred pain.
D. gate pain.
E. ghost pain.
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Question 4) The gate control theory of pain says that pain impulses traveling through the lateral spinothalamic tract can be suppressed by increased activity of the
A. anterior spinothalamic tract.
B. tertiary neurons.
C. extrapyramidal tracts.
D. dorsal column/medial lemniscal system.
E. spinocerebellar tracts.
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Question 5) The fasciculus gracilis and fasciculus cuneatus would help us
A. perceive pain.
B. tell if an object is rough or smooth.
C. sense temperature.
D. move our arms and legs.
E. write a sentence.
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Question 6) The portion of the dorsal column/medial lemniscal tract that carries proprioceptive sensations from nerve endings in the feet and legs is the
A. nucleus gracilis.
B. nucleus cuneatus.
C. fasciculus gracilis.
D. fasciculus cuneatus.
E. fasciculus nucleus.
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Question 7) In an ascending pathway, axons of the secondary neuron travel from the
A. receptor to the spinal cord.
B. receptor to the brain.
C. spinal cord through the brainstem to the thalamus.
D. thalamus to the cerebral cortex.
E. spinal cord to cerebellum.
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Question 8) Receptors that in general do not produce an action potential, but can release neurotransmitters in response to a receptor potential are
A. phasic receptors.
B. primary receptors.
C. secondary receptors.
D. tonic receptors.
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Question 9) Which of the following is an ascending pathway in the spinal cord?
A. lateral spinothalamic tract
B. rubrospinal tract
C. lateral corticospinal tract
D. tectospinal tract
E. anterior corticospinal tract
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Question 10) Terrance is told by his physician that he has lesions on one side of his spinal cord, which cut the lateral spinothalamic tract. Therefore, Terrance will have an inability to perceive
A.
sensations of touch from both sides of his body below the level of injury.
B.
his sense of proprioception on the same side of his body below the level of the injury.
C.
cutaneous sensations on the opposite side of his body below the level of injury.
D.
sensations of vibration on the opposite side of his body at the level of the injury.
E.
sensations of tickle on the same side of his body below the level of injury.
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