A cancer patient is told by their physician that their colon is lacking smooth muscle tone. What does this mean?
A.
The colon is developing action potentials too rapidly.
B.
The colon has too many shallow invaginations of cell membranes.
C.
The colon is unable to maintain constant tension for sustained periods of time.
D.
The intracellular cytoskeleton is overactive.
C
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Which one of the following symbols indicates a sound produced by a single tap of the tongue tip against the alveolar ridge?
a) [ x] b) [ ?] c) [?] d) [?][
All of the following membrane transport mechanisms are passive processes except
A) diffusion. B) facilitated diffusion. C) vesicular transport. D) osmosis. E) movement of water.
Match the condition with the description.
1. associated with Graves' disease 2. caused by growth hormone deficiency in childhood 3. caused by growth hormone excess in adulthood 4. mental retardation associated with infantile hypothyroidism 5. This condition results from excess androgens in females. A. acromegaly B. adrenogenital syndrome C. cretinism D. dwarfism E. exophthalmus
What heart tissue releases platelet-activating factor when too little O2 is available in the coronary vessels?
a. pericardium b. endothelium c. myocardium d. epicardium e. Purkinje fibers