Enterogastric reflexes
A) increase gastric motility.
B) increase gastric secretion.
C) are triggered by bile entering the gallbladder.
D) involve the central nervous system.
E) stimulate the contraction of the pyloric sphincter.
Answer: E
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The size of an EPSP is independent of the amount of excitatory neurotransmitter that is released by the presynaptic cell
Indicate whether this statement is true or false.
Answer the following statements true (T) or false (F)
1. A physician is often able to detect homeostatic imbalances in the body by observing changes in the skin color. 2. When an individual is exposed to extremely low air temperatures, the dermal blood vessels will dilate so that blood and heat will be dissipated. 3. Regardless of race, all human beings have about the same number of melanocytes. 4. Ceruminous glands are modified merocrine glands. 5. The stratum corneum (outermost layer of skin) is a zone of approximately four layers of viable cells that are able to synthesize proteins that keep the outer layer of skin smooth and soft.
A patient has been receiving immunosuppressive doses of glucocorticoids for 6 months. At the end of this therapy, the dose of the hormone must be slowly tapered down over a period of weeks. This is due to:
A. adrenal atrophy B. pituitary hypertrophy C. upregulation of glucocorticoid receptors D. elevated ACTH levels E. increased circulating CBG levels
When an effector receives input from both the sympathetic and the parasympathetic divisions, it is said to have ________ innervation.
Fill in the blank(s) with the appropriate word(s).