Answer the following statements true (T) or false (F)
1. Most body organs are innervated by only the sympathetic division of the nervous system.
2. Through direct neural stimulation, the sympathetic division promotes many metabolic effects via hormone release.
3. Cranial nerves VII, IX, and X contain postganglionic fibers of the parasympathetic nervous system.
4. The ANS stimulates smooth and skeletal muscles and glands, whereas the somatic nervous system innervates cardiac muscles only.
5. Norepinephrine-releasing fibers are called cholinergic fibers.
1. FALSE
2. TRUE
3. FALSE
4. FALSE
5. FALSE
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The major means of decreasing heat loss in response to a cold environmental temperature is
a. skin vasoconstriction. b. skin vasodilation. c. increasing the temperature gradient between the skin and environment. d. formation of "goose bumps." e. shivering.
Connective tissue in tendons is
A. dense regular collagenous tissue. B. dense irregular elastic tissue. C. reticular tissue. D. dense regular elastic tissue. E. dense irregular collagenous tissue.
Nerve fibers in a given white matter tract are similar in origin, destination, and function.
Answer the following statement true (T) or false (F)
A decrease in blood volume will result in
A. decreased blood pressure. B. increased ADH (antidiuretic hormone) secretion. C. decreased urine volume. D. All of the choices will occur.