Rebecca's inspiratory reserve volume = 5, vital capacity = 8, residual volume = 1, and expiratory reserve volume = 2. Her tidal volume would be equal to ________ and her total lung capacity would be ________.
A. 1; 13
B. 3; 7
C. 2; 10
D. 1; 9
E. Unable to determine with the given data.
Answer: D
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A college student who is constantly dieting decides to go to the dining hall, as she has no energy, is experiencing muscular weakness, and sometimes becomes dizzy upon exertion. What is the likely diagnosis, and what is the cause of this condition?
What will be an ideal response?
Functions of proteins include
A. providing structural strength in connective tissue. B. serving as a part of the cholesterol molecule. C. serving as the primary energy source of cells. D. transport of nitrogen gas in the blood. E. padding and insulation.
What is the pigment that protects the DNA of keratinocytes from mutations induced by UV radiation?
a. melanin b. carotene c. albinism d. hemoglobin
Answer the following statements true (T) or false (F)
1. During strenuous exercise, the muscles’ use of oxygen and nutrients can outstrip the blood’s ability to supply them. 2. When muscles must use energy release that does not require oxygen, the waste product ascorbic acid is produced, which can cause soreness in the muscle. 3. The term oxygen debt describes the continued increased metabolism that must occur in a cell to remove the excess acid that accumulates during prolonged exercise. 4. The respiratory and nervous systems, in addition to the muscular system, play important roles in body movement. 5. A motor neuron and all the muscle cells it stimulates are called a neuromuscular junction.