PSYC 273 -QUIZZES REVIEW (EXAM 2)
Which of the following body parts are not highly represented on the sensory homunculus? -
correct answer Eyes
The brain recognizes action potentials from different sensory modalities as separate and
distinct because: - correct answer Action potentials from different sensory modalities are
carried on different nerve tracts.
The generator potential produced by a Pacinian corpuscle in response to mechanical
stimulation is: - correct answer Proportional to stimulus intensity
While walking barefoot on gravel, which receptor allows you to feel the texture of the gravel
pressing into your feet? - correct answer Pacinian corpuscles
Which statement about the receptive field of a sensory neuron on skin is true? - correct answer
Receptive fields of sensory neurons have a characteristic shape with excitatory and inhibitory
regions.
Which of the following is involved in pain pathways in the spinal cord? - correct answer
Substance P
Afferent fibers from the periphery that carry nociceptive information terminate on neurons in
the: - correct answer Dorsal horn cells of the spinal cord.
Jane is experiencing some shoulder pain, and her doctor prescribes a treatment that involves
stimulating the nerves adjacent to her site of pain. This type of treatment is called: - correct
answer Transcutaneous electrical nerve stimulation (TENS)
Capsaicin found in many spicy foods, primarily activates which of the following receptors? -
correct answer TRPV1
Eddie just learned that the medication he has been taking has no known pharmaceutical effects
but has still been alleviating his symptoms. This medications effect are best known as: - correct
answer A placebo
Hertz (Hz) is the unit used to measure _________ of sound waves, which is perceived as
______. - correct answer Frequency; pitch
Which of the following is not accurate with respect to the neural connections with hair cells? -
correct answer OHC afferents convey messages from the hair cells to the basilar membrane
influencing pitch perception
Prolonged exposure to loud noises is most likely to result in: - correct answer Sensorineural
deafness
Which of the following body parts are not highly represented on the sensory homunculus? -
correct answer Eyes
The brain recognizes action potentials from different sensory modalities as separate and
distinct because: - correct answer Action potentials from different sensory modalities are
carried on different nerve tracts.
The generator potential produced by a Pacinian corpuscle in response to mechanical
stimulation is: - correct answer Proportional to stimulus intensity
While walking barefoot on gravel, which receptor allows you to feel the texture of the gravel
pressing into your feet? - correct answer Pacinian corpuscles
Which statement about the receptive field of a sensory neuron on skin is true? - correct answer
Receptive fields of sensory neurons have a characteristic shape with excitatory and inhibitory
regions.
Which of the following is involved in pain pathways in the spinal cord? - correct answer
Substance P
Afferent fibers from the periphery that carry nociceptive information terminate on neurons in
the: - correct answer Dorsal horn cells of the spinal cord.
Jane is experiencing some shoulder pain, and her doctor prescribes a treatment that involves
stimulating the nerves adjacent to her site of pain. This type of treatment is called: - correct
answer Transcutaneous electrical nerve stimulation (TENS)
Capsaicin found in many spicy foods, primarily activates which of the following receptors? -
correct answer TRPV1
Eddie just learned that the medication he has been taking has no known pharmaceutical effects
but has still been alleviating his symptoms. This medications effect are best known as: - correct
answer A placebo
Hertz (Hz) is the unit used to measure _________ of sound waves, which is perceived as
______. - correct answer Frequency; pitch
Which of the following is not accurate with respect to the neural connections with hair cells? -
correct answer OHC afferents convey messages from the hair cells to the basilar membrane
influencing pitch perception
Prolonged exposure to loud noises is most likely to result in: - correct answer Sensorineural
deafness
