Which statement about graded potentials is false?
a. They are decremental.
b. They travel only short distances.
c. They are self-propagating.
d. They may contribute to the development of an action potential.
e. They travel in both directions along the membrane.
C
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Which of following best describes the function of the vertebral curves?
A) providing balance and flexibility to the body B) accommodating muscle attachment C) improving cervical center of gravity D) accommodating the weight of the pelvic girdle
Hormones are released by the adrenal medulla in response to:
A) direct stimulation by the sympathetic nervous system B) decreased blood pressure C) increased blood glucose D) increased blood pressure
In stratified epithelia adapted to resist mechanical forces, which of the following types of cell-to-cell junctions are especially abundant?
A) tight junctions B) basolateral junctions C) gap junctions D) hemidesmosomes E) desmosomes
All of the following are targets for insulin except
A) skeletal muscle. B) adipocytes. C) liver cells. D) cardiac and smooth muscle. E) blood cells.