The bicarbonate buffering system is the most important buffering system in the extracellular fluid
Indicate whether this statement is true or false.
TRUE
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Which of the following chemicals is not present in bone?
A) calcium phosphate B) collagen fibers C) calcium carbonate D) chondroitin sulfate E) hydroxyapatite
ADH would be considered a(n) ________ regulator of blood flow.
A. extrinsic B. intrinsic C. hormonal D. Both extrinsic and hormonal are correct.
Amplification during a second-messenger cascade is beneficial because amplification:
A. takes small molecules and makes polymers out of them. B. results in the production of more of the first messenger. C. allows a cell to respond to more different hormones. D. allows small amounts of hormones to produce large responses in target cells.
The internal urethral sphincter is formed by skeletal muscle fibers of the urogenital diaphragm.
Answer the following statement true (T) or false (F)