What is a function of catecholamines?
a) to increase alertness and prepare the body for physical activity
b) to decrease alertness and induce sleep
c) to slow the heart rate, decrease blood pressure and raise metabolic rate
Answer: a) to increase alertness and prepare the body for physical activity
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Which of the following correctly describes the vestibular projection pathway to the brain?
A. Vestibular nerve - vestibulocochlear nerve - thalamus - vestibular nuclei - cerebral cortex B. Vestibulocochlear nerve - vestibular nerve - thalamus - vestibular nuclei - cerebral cortex C. Vestibular nerve - vestibulocochlear nerve - vestibular nuclei - thalamus - cerebral cortex D. Vestibulocochlear nerve - vestibular nerve - vestibular nuclei - thalamus - cerebral cortex
Pain receptors
A. adapt rapidly. B. are among the most specialized receptors. C. respond to factors that can damage tissue. D. are widely distributed in the brain.
The neurons that are responsible for integrating information by retrieving, processing, storing, and "deciding" how the body responds to stimuli are
A. motor neurons. B. sensory neurons. C. correlation neurons. D. interneurons. E. accessory neurons.
The transparent portion of the fibrous layer is the
A) conjunctiva. B) cornea. C) iris. D) pupil. E) canthus.