The chemoreceptor reflexes
A. cause an increase in blood flow to the lungs.
B. cause an decrease in blood flow to the lungs.
C. helps decrease blood oxygen levels.
D. cause a decrease in blood flow to the heart.
E. cause an decrease in blood flow to the lungs and cause a decrease in blood flow to the heart are correct.
Answer: A. cause an increase in blood flow to the lungs.
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The ________ valve of the heart has three valves with chordae tendineae.
Fill in the blank(s) with the appropriate word(s).
The aortic valve opens
a. when ventricular pressure exceeds aortic pressure. b. at the start of systole. c. at the maximum ventricular pressure. d. immediately after atrial contraction. e. none of these answers.
The condition of yellow jaundice occurs when the body builds up excess ________.
A. carotene B. melanin C. bilirubin D. freckles
During osmosis, water moves toward the solution with the ________ solute concentration.
A. greater B. lesser