CSCS Practice Exam; Questions & Answers 100% Solved
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Course
NSCA-CSCS
Institution
NSCA-CSCS
CSCS Practice Exam; Questions & Answers
100% Solved
1. To which of the following structures do the cross-bridges attach during muscle action?
a. actin
b. myosin
c. M-bridge
d. sarcolemma Answer-actin
2. Which of the following substances regulates muscle actions?
a. potassium
b. cal...
CSCS Practice Exam; Questions & Answers
100% Solved
1. To which of the following structures do the cross-bridges attach during muscle action?
a. actin
b. myosin
c. M-bridge
d. sarcolemma Answer-actin
2. Which of the following substances regulates muscle actions?
a. potassium
b. calcium
c. troponin
d. tropomyosin Answer-calcium
3. Which of the following substances acts at the neuromuscular junction to excite the muscle
fibers of a motor unit?
a. acetylcholine
b. ATP
c. creatine phosphate
d. serotonin Answer-acetylchooline
, CSCS Practice Exam; Questions & Answers
100% Solved
4. Which of the following muscle fiber types is the MOST beneficial for a marathon runner?
a. Type I
b. Type IIa
c. Type IIx
d. Type IIc Answer-Type I
5. When throwing a baseball, an athlete's arm is rapidly stretched just prior to throwing the ball.
Which of the following structures detects and responds to that stretch by reflexively increasing
muscle activity?
a. Golgi tendon organ
b. muscle spindle
c. extrafusal muscle
d. Pacinian corpuscle Answer-Muscle spindle
6. From which of the following is the heart's electrical impulse normally initiated?
a. AV node
b. SA node
, CSCS Practice Exam; Questions & Answers
100% Solved
c. the brain
d. the sympathetic nervous system Answer-SA node
7. Which of the following occurs during the QRS complex of a typical ECG?
I. depolarization of the atrium
II. repolarization of the atrium
III. repolarization of the ventricle
IV. depolarization of the ventricle
a. I and III only
b. II and IV only
c. I, II, and III only
d. II, III, and IV only Answer-Repolarization of the atrium; depolarization of the ventricle
(II and IV only)
1. Which of the following is the ultimate source of energy for a muscular contraction?
a. GTP
b. oxygen
c. NADH
d. ATP Answer-ATP
, CSCS Practice Exam; Questions & Answers
100% Solved
2. Which of the following substances can be metabolized anaerobically?
a. protein
b. carbohydrate
c. fat
d. glycerol Answer-carbohydrate
3. The predominant energy system used during a training session depends primarily on the
a. session intensity.
b. session duration.
c. athlete's training status.
d. athlete's lean body mass. Answer-Session intensity
4. The production of lactic acid results from the activation of which of the following energy
systems?
a. phosphagen
b. slow glycolysis
c. fast glycolysis
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