Breathing 100% oxygen will NOT ________.
A. increase the amount of oxygen in red blood cells
B. significantly increase the oxygen delivery to tissues
C. significantly increase the total oxygen content of whole blood
D. Both increase the amount of oxygen in red blood cells and significantly increase the total oxygen content of whole blood.
Answer: D
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Jaundice is caused by a build-up in the body of ________
A) Bile B) Carotene C) Melanin D) Bilirubin
Which of the following does not occur when smooth muscle contracts?
a. Walls of blood vessels help maintain blood pressure. b. Food moves through the digestive tract. c. Bones of the skeletal system move. d. All of the above occur when smooth muscle contracts.
Which is NOT a function of mammalian cardiovascular systems?
a. deliver CO2 to the lungs b. deliver ATP to cells for fuel c. deliver heat to skin to regulate body temp d. deliver O2 to all cells of body e. deliver H2O to all cells f. transport hormones to all cells -only target cells respond g. deliver glucose to cells for use or storage h. deliver immune cells to sites of injure
Which of the following hormones increases and prolongs effects of the sympathetic nervous system?
A) cortisol B) parathyroid hormone C) insulin D) growth hormone E) epinephrine