The ________ carry blood toward the lungs.
A. pulmonary trunk and arteries
B. pulmonary arteries and veins
C. superior and inferior venae cavae
D. aorta and pulmonary arteries
E. pulmonary trunk and veins
Answer: A
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Which of the following usually results in an increase in aldosterone secretion?
a. An increase in plasma K+ b. A decrease in plasma K+ c. Activation of the renin-angiotensin pathway d. Both a and c e. Both b and c
The appropriate baroreceptor reflex response to high blood pressure is:
What will be an ideal response?
Receptors for all of the following hormones are found in the cell membranes of target cells except
A) catecholamines. B) peptide hormones. C) steroid hormones. D) eicosanoids. E) tryptophan derivatives.
In which of the following situations does a resting membrane potential exist?
A. a relaxed muscle fiber B. a conducting neuron C. a stimulated sensory receptor in the skin D. a contracting cardiac muscle cell E. the eye seeing an image