Download Practice Exam 4 by Samantha

Samantha M.
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Practice Exam 4
Which of the following is a correct statement?
a. The stereocilia is located in the endolymph which has high concentration of sodium.
b. The stereocilia is located in the perilymph which has high concentration of sodium.
c. The stereocilia is located in the endolymph which has high concentration of
potassium.
d. The stereocilia is located in the endolymph which has high concentration of
potassium.
e. The stereocilia is located in the perilymph which has high concentration of
potassium.
True or False: There is high frequency at the apex of the cochlea.
Which of the following is a correct statement?
a. The outer part of the ear includes the pinna, auditory canal, and tympanic
membrane.
b. The middle ear includes the ossicles.
c. The inner part of the ear includes the cochlea.
d. All of the above
e. A and B
The TRPA 1 gate is:
a. Voltage gated
b. Ligand gated
c. Mechanically gated
d. A and C
e. A and B
True or False: the scala vestibuli is located above the scala media
Which of the following statements is correct?
a. During depolarization the outer hair cell shortens
b. During depolarization the inner hair cell shortens
c. During depolarization the outer hair cell lengthens
d. During depolarization the inner hair cell lengthens
What cranial nerve is connected to the inner hair cells?
a. CN 8
b. CN 10
c. CN 5
d. CN 6
e. None of the above
The action potential for the ear:
a. Sodium influx causing depolarization through the stereocilia in the endolymph.
b. Potassium influx causing depolarization through the stereocilia in the endolymph.
c. Calcium influx causing depolarization through the stereocilia in the endolymph.
d. Sodium influx causing depolarization through the stereocilia in the perilymph
e. Potassium influx causing depolarization through the strereocilia in the perilymph.
Auditory transduction:
a. Sound waves come to pinna, then auditory canal, the maleus, incas, stapes, then
round window, then cochlea.
b. Sound waves come to pinna, then auditory canal, tympanic membrane, maleus,
incas, stapes, then round window, then cochlea.
c. Sound waves come to pinna, then auditory canal, tympanic membrane, maleus,
incas, stapes, then oval window, then cochlea.
d. Sound waves come to pinna, then auditory canal, tympanic membrane, maleus,
stapes, incas, oval window, then cochlea.
10. Label:
11.
Which direction would cause depolarization? Left or Right
12. Which of the following is correct regarding the auditory pathway?
a. Crossover first occurs at the superior olive
b. Crossover first occurs at the inferior colliculus
c. Crossover first occurs at the ventral cochlear nucleus
d. Crossover first occurs at the MGN
e. There is no crossover
13. Which of the following is correct regarding the auditory pathway?
a. Spiral ganglion through auditory nerve to the ventral cochlear nucleus, crossover at
the superior olive, travel through lateral lemniscus, to the inferior colliculus, to the
MGN, to the primary auditory cortex.
b. Spiral ganglion through auditory nerve to the superior olive, crossover at the ventral
cochlear nucleus, travel through lateral lemniscus, to the inferior colliculus, to the
MGN, to the primary auditory cortex.
c. Spiral ganglion through auditory nerve to the ventral cochlear nucleus, crossover at
the superior olive, travel through lateral lemniscus, to the inferior colliculus, to the
MGN, to the secondary auditory cortex.
d. Spiral ganglion through auditory nerve to the ventral cochlear nucleus, crossover at
the superior olive, travel through inferior colliculus, to the lateral lemniscus, to the
MGN, to the primary auditory cortex.
e. None of the above
14. Which of the following is a correct statement?
a. The helicotrema relieves pressure from the cochlea and the round window allows
the fluid to move
b. The round window relieves pressure from the cochlea and the helicotrema allows
the fluid to move
c. The oval window is located at the base
d. A and C
e. B and C
15. Match the synapse in the auditory pathways to the location: 1-Thalamus, 2-midbrain, 3medulla
a. Superior olive
b. Ventral cochlear nucleus
c. Inferior colliculus
d. MGN
e. Primary auditory cortex
16. True or False: in the dorsal column-medial lemniscal pathway, crossover occurs at the
medulla.
17. True or false: in the spinothalamic pathway, the crossover occurs at the spinal cord.
18. Which of the following is correct?
a. The dorsal column pathway is for touch, vibration, two-point discrimination, and
proprioception
b. The spinothalamic pathway is for pain, temperature, and some touch.
c. Only the dorsal column pathway synapse at the VPN in the thalamus.
d. Only the spinothalamic pathway synapse at the VPN in the thalamus.
e. A and B
f. A and C
g. A and B
19. Which axon is for proprioception and is the fastest?
a. A-alpha
b. A-beta
c. A-delta
d. C fiber
20. Label:
21. Which of the following is a correct statement?
a. Meissner’s corpuscle and merkel’s disk have a small receptive field size and rapid
adaptation
b. Meissner’s corpsuscle and merkel’s disk have a small receptive field size
c. Merkel’s disk and ruffini’s extension have slow adaptation
d. Pacinian corpuscle and ruffini’s extension have rapid adaptation
e. A and C
f. B and C
g. A and D
22. Which areas would pass the two-point discrimination test?
a. Lips
b. Hands
c. Arms
d. Back
e. All of the above
f. A and B