What is muscular endurance?
A) the amount of time required to contract a muscle completely
B) the ability to resist fatigue and to sustain muscular tension over time
C) the ability to move the joints through a full range of motion
D) the amount of force a muscle can produce with a single maximum effort
D) the amount of force a muscle can produce with a single maximum effort
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When the drug atropine is used to treat bradycardia, its action is to ________
A) block the movement of calcium to allow the coronary arteries to dilate B) block acetylcholine receptors in the heart so that the heart rate increases C) have a negative chronotropic effect D) lower the cholesterol level
Which organ of the respiratory system is used by both the respiratory and digestive systems?
A) pharynx B) stomach C) trachea D) nasal cavity
Chronic lower respiratory disease (CLRD) is related mostly to activity level
Indicate whether this statement is true or false.
Hemoglobin is a protein
Indicate whether the statement is true or false