Which of the special senses contains receptor neurons that are the only nerve cells in direct contact with the outside environment?
A. Equilibrium
B. Vision
C. Hearing
D. Taste
E. Olfaction
Answer: E
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When someone exercises vigorously, their breathing is described as demonstrating
A. hyperventilation, involving both deeper and faster breathing. B. hypopnea, involving shallower but faster breathing. C. hyperpnea, involving deeper but not faster breathing. D. bradypnea, involving deeper and slower breathing.
The neural layer of the retina prevents excessive scattering of light within the eye
Indicate whether the statement is true or false
The sound of a heart murmur is created from
A. a hiccup. B. leaky heart valves. C. acid reflux in the esophagus. D. fluid in the lungs.
Which of the following cutaneous receptors is NOT sensitive to fine touch?
A. Merkel disks B. Root hair plexus C. Meissner corpuscles D. Pacinian corpuscles