Osteoid is the
A. inorganic part of the bone matrix that gives it tensile strength.
B. inorganic part of the bone matrix that gives it rigidity.
C. organic part of the bone matrix that gives it rigidity.
D. organic part of the bone matrix that gives it tensile strength.
Answer: D
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The functional unit of the kidney is the neuron.
Answer the following statement true (T) or false (F)
To measure GFR, an individual's urine is examined for the concentration of a test substance that they received by injection. How is that test substance treated by the kidney?
A. It is filtered, reabsorbed, and excreted, but it is not secreted. B. It is neither filtered nor reabsorbed, but it is secreted. C. It is filtered but neither reabsorbed nor secreted. D. It is filtered and secreted, but not reabsorbed. E. It is not filtered, but it is secreted and reabsorbed.
The ______ cells are responsible for HCl production.
A. goblet B. mucous C. parietal D. chief
Which renal structure is responsible for producing hypertonic urine by reabsorbing water while allowing metabolic wastes and NaCl to pass through?
A. Glomerulus B. Nephron loop C. Collecting duct D. Proximal convoluted tubule E. Distal convoluted tubule