Starling's law of the heart states that the heart pumps:a
more forcefully when more blood is delivered to it.
b. more rapidly when less blood is delivered to it.
c. less forcefully when oxygen-rich blood is delivered to it.
d. slower when more blood is delivered to it.
e. slower when norepinephrine is secreted.
A
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What will be an ideal response?
Two nervous system diseases are food-borne, botulism caused by Clostridium botulinum and listeriosis, a form of meningitis, caused by Listeria monocytogenes. These diseases differ in that
A. listeriosis is associated with contaminated low-acid vegetables, whereas botulism is associated with contaminated infant formula. B. botulism has a very high mortality rate (~50%), whereas listeriosis is readily cured by a course of antibiotics. C. listeriosis primarily affects pregnant women, whereas botulism can affect anyone. D. botulism results from an intoxication, whereas listeriosis is an infection.
Which of the following physiological responses occurs in the human body when it becomes overheated?
A) slowing of the heart rate B) constriction of blood vessels in the skin C) increased blood flow to the skin D) retention of water
What molecule indirectly provides the energy for translation?
A. ATP B. GTP C. ADP D. GMP E. GDP