There is practically no glucose in the urine normally because:
A) it breaks down in the medulla.
B) it is reabsorbed in the proximal convoluted tubule.
C) it is used up by the loop of Henle.
D) it does not pass through the glomerulus.
B
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A computer mouse is best described as:
A) A hardware device used to input a photographic image into the computer system. B) A device that rolls on a hard, flat surface and controls the movement of the cursor, or pointer, on the screen. C) A software device used to increase random-access memory in a computer system. D) The one hardware device that can be used to organize, manage, and store data on a computer system.
All of the following are types of skin cancer EXCEPT:
A) Pigmentation disorder. B) Squamous cell. C) Malignant melanoma. D) Basal cell carcinoma.
Stimulation of the sympathetic nervous system will cause the body to release the hormones epinephrine and ____________________.
Fill in the blank(s) with the appropriate word(s).
Why is too much iron dangerous?
a. Transferrin, which carries iron, causes cellular swelling and lysis. b. The oxygen carried by excess iron oxidizes neurologic cells. c. Iron's breakdown products cause excretion of vitamins C and E. d. Free radicals and superoxide formed from ferrous iron plus oxygen damage cell membranes.