A change in smooth muscle cell tension in the absence of a change in electrical potential of the cells is described as a
A) slow wave potential.
B) pacemaker potential.
C) pharmacomechanical coupling.
D) electromechanical coupling.
C) pharmacomechanical coupling.
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Loss of pericytes around retinal capillaries is a hallmark of the disease ________.
Fill in the blank(s) with the appropriate word(s).
"Water, water, every where, nor any drop to drink" is a phrase from the Rime of the Ancient Mariner by Samuel Taylor Coleridge. This poem describes an ocean ship unable to sail to land and running out of its supply of fresh water; sailors have long known that drinking seawater cannot prevent death from dehydration. What would result if the sailors attempted to alleviate their dehydration by
drinking seawater? Justify your answer by describing kidney physiology. Why wouldn't reflexes, in response to dehydration, fully compensate? What does this illustrate about the force allowing kidneys to retain water under more normal conditions? What will be an ideal response?
From which structure does sensible perspiration occur?
A) 6 B) 7 C) 8 D) 9 E) 10
Insulin is produced by:
a. Alpha cells in the pancreatic isles b. Chief cells in the stomach c. Beta cells in the pancreatic islets d. Alpha cells in the adrenal medulla e. Parafollicular cells in the thyroid gland