Two important relationships exist between neurons: ____________________ and ____________________
Fill in the blank(s) with correct word
convergence; divergence
divergence; convergence
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Which is not characteristic of sympathetic pathways?
a. fibers issue from the thoracic and lumbar levels. b. preganglionic fibers release norepinephrine. c. postganglionic fibers release ACh. d. short preganglionic fibers. e. most preganglionic fibers synapse in the chain ganglia.
________ is secreted by beta cells of pancreas, its secretion is stimulated by ________ in blood glucose level.
A. Glucagon, a decrease B. Insulin; an increase C. Glucagon, an increase D. Insulin; a decrease
As a runner sprints down a track, her movement is an example of
A. potential energy. B. radiant energy. C. heat. D. chemical energy. E. mechanical energy.
In the positive feedback mechanism governing breastfeeding, the mammary glands of the breast serve as the
A. effector. B. set point. C. control center. D. receptor.