Bronchial asthma is usually caused by
A) coalescing alveoli. B) paralysis of breathing muscles.
C) an injury to the respiratory areas. D) an allergy.
D
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How do muscles store their energy?
A. In their mitochondria B. As glycogen C. In their terminal cisternae D. Bound to myoglobin E. Bound to troponin
What term describes the pressure in the pulmonary trunk and aorta during diastole?
A. Preload B. Frank-Starling law of the heart C. Afterload D. Contractility
Which of the following is true about distribution of fast and slow-twitch fibers in the body?
A) Fast-twitch fibers are primarily found in long distance runners. B) Slow-twitch fibers are usually more resistant to fatigue. C) There is a clear separation of slow- and fast-twitch fibers in individual muscles. D) Training does not influence the balance of fast- and slow-twitch fibers
When contraction occurs,
A) the H band gets smaller. B) the A band remains constant. C) the I band begins to disappear. D) the Z lines move closer together. E) All of the answers are correct.