What does the term "power stroke" refer to?
A. The cleaving of ATP into ADP and a phosphate
B. The shortening of actin filaments
C. The transmission of a signal from the motor neuron to the muscle fiber
D. The movement of the myosin head toward the center of the sarcomere
E. The maximum force generated during a contraction
Answer: D
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Wolff's law of bone explains the effect of __________.
A. different diets on bone elongation B. mechanical stress on bone remodeling C. temperature on bone growth D. age on bone thickening E. sex on bone widening
Where is most of the iron in a person's body located?
A. In the kidneys B. In the bone marrow C. In the liver D. In the cytochromes E. In erythrocytes
The only area of the spine that allows for significant rotation is:
A) C1-C2. B) C2-C4. C) C6-C7. D) T1-T2.
Pepsinogens are produced by parietal cells in the stomach
Indicate whether the statement is true or false