The countercurrent mechanism functions primarily in the
A) distal convoluted tubule B) nephron loop.
C) proximal convoluted tubule. D) renal corpuscle.
B
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Explain how an NK cell would destroy a cancer cell. Identify the portion of the NK cell that plays a key role in this abnormal-cell destruction
What will be an ideal response?
Predict what type of tissue would be abundant in vessels that act as resistance vessels
A) Smooth muscle B) Elastic tissue C) Loose connective tissue D) Simple squamous epithelium
A patient's urine sample has tested positive for nitrites. What is the most likely reason for the presence of nitrites in the urine?
A) bacterial infection of the urinary tract B) porphyria C) diabetes mellitus D) glomerulonephritis
The presence of ________ on cells allows your immune system to distinguish between cells that are naturally yours and cells that are not.
A. antigens B. antibodies C. B cells D. T cells