Auditory impulses are transmitted by the ________ portion of the vestibulocochlear nerve.
A. ossicular
B. cochlear
C. spiral
D. vestibular
E. tympanic
Answer: B
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Before an olfactory receptor can detect an odorant, it has to
A) contact a basal cell. B) bind to receptors on olfactory dendrites. C) open ion channels. D) respond to applied pressure. E) be transported to the olfactory bulbs.
The P wave of an ECG corresponds to
A) the depolarization of the atria. B) the progressive wave of ventricular depolarization. C) atrial repolarization. D) the repolarization of the ventricles. E) None of the answers are correct.
Specialized ________ in the carotid and aortic bodies are activated by a decrease in PO2 and pH or an increase in PCO2. What do they trigger?
Fill in the blank(s) with the appropriate word(s).
The pyramids are located in the:
a. pons b. medulla c. spinal cord d. cerebellum