In some digestive reflexes, the facial nerve stimulates salivary glands; the salivary glands are acting as
A. efferents.
B. afferents.
C. effectors.
D. control centers.
E. receptors.
Answer: C
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Which of the following is NOT a way angiotensin II affects the kidneys?
a) It increases GFR b) It can decrease GFR c) It enhances reabsorption of certain ions d) It stimulates the release of aldosterone e) None of these choices
Which of the following is a function of the autonomic fibers that run in the facial nerve?
A. They supply the lacrimal gland. B. They supply taste sensation to the anterior third of the tongue. C. They supply the parotid salivary gland. D. They supply the ciliary muscle. E. They supply the esophagus.
In a negative feedback mechanism, which of the following events does not occur.
a. A stimulus is a change in some variable. b. A receptor perceives a stimulus. c. The control center sends output to an effector. d. The effector stimulates or increases the stimulus, so the cycle continues.
What purpose does reflex testing serve?
A) Reflex testing provides information about resting muscle tone. B) Reflex testing provides information about muscle strength. C) Reflex testing provides information about sensory receptors. D) Reflex testing provides information about the memory of a subject. E) Reflex testing provides information about the nervous system's functional status.