Which of the following is not true of the skeletal system?
A) It interacts with the muscular system to provide movement.
B) It interacts with the lymphatic system to regulate calcium levels.
C) It interacts with the nervous system by providing protection to the spinal cord.
D) It interacts with the cardiovascular system by providing blood cells.
E) It interacts with the digestive system by absorbing more calcium when needed.
Answer: B
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Climbing at high altitude where oxygen levels are insufficient can lead to
A. respiratory acidosis. B. respiratory alkalosis. C. metabolic acidosis. D. metabolic alkalosis.
A condition caused by prolonged repetitive motions of the wrist and fingers is called carpal ________ syndrome.
Fill in the blank(s) with the appropriate word(s).
Once cytotoxic T cells are produced, which of the following is (are) consistent with their ability to attack intracellular viruses?
A. Most nucleated cells process antigens through the MHC class I mechanisms. B. Viral antigens are processed by the MHC class I mechanism and are presented to the cell surface. C. Cytotoxic T cells bind to MHC class I processed antigens. D. Cytotoxic T cells bound to the MHC class I processed antigens release lymphokines. E. All of these choices are correct.
Hyperkalemia is defined as
A. excess excitability of kalems. B. reduction of plasma calcium level. C. increase in plasma potassium level. D. increase in plasma sodium level. E. decrease in plasma potassium level.