We are told that every surface we touch is teeming with bacterial cells, and bacteria are found in the pools we swim in, the water we wash with, and on the hands of friends. Why are we not inundated with bacterial infections on our skin?
What will be an ideal response?
The low pH of the skin secretions, otherwise known as the acid mantle, retards the multiplication of bacteria on the skin. Also, in areas where sufficient sebum is produced regularly, many species of bacteria cannot exist. Beside the barrier qualities of the skin, it is also true that not all bacteria are harmful or thrive on skin.
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After prolonged exertion in a hot climate, baroreceptors would ________ firing, leading to ________ secretion of ________ and thus ________ renal reabsorption of ________.
A. increase; increased; renin; increased; Na+ B. increase; decreased; vasopressin; decreased; water C. decrease; decreased; vasopressin; increased; water D. decrease; increased; renin; decreased; Na+ E. decrease; increased; vasopressin; increased; water
All splanchnic nerves are sympathetic
Indicate whether the statement is true or false
For a substance to be actively reabsorbed, all of the steps of transepithelial transport require energy expenditure
Indicate whether the statement is true or false
Which of these would NOT be a benefit of suturing large wounds together?
A) more rapid healing B) less chance of infection C) more wound contracture D) less scar tissue formed E) less granulation tissue formed