Why old men cannot hear the mosquito ringtone?
A. (A) decreased high frequency sensitivity
B. (B) increased hair cell numbers
C. (C) dysfunction of semicircular canals
D. (D) all of the above
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Which type of transduction can be evoked when the hair cell bundles deflect?
A. (A) chemical electrical transduction
B. (B) mechanoelectrical transduction
C. (C) thermal electrical transduction
D. (D) electromechanical transduction
Which structure is involved in body balance?
A. (A) external auditory meatus
B. (B) middle ear cavity
C. (C) semicircular canals
D. (D) auricle
Which is not the basic structure of the brain?
A. (A) gray matter
B. (B) white matter
C. (C) ventricles
D. (D) fissures
Which does not belong to the cerebrum?
A. (A) basal ganglia
B. (B) hypothalamus
C. (C) hippocampus
D. (D) amygdala
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