2024 NSCA CSCS Exam Prep ( Version 3 ) New Full Exam Questions and Answers ( Included ) 100% Correct
- The pelvis is located to the patella.
Answer: superior
- Which of the following is the smallest contractile unit of skeletal muscle?
myosin epimysium sarcolemma sarcomere
Answer: sarcomere
- Which of the following describes Type I muscle fibers?
rapid force development capabilities fatigue resistant with high aerobic energy supply inefficient and easily fatigable high myosin ATPase activity
Answer: fatigue resistant with high aerobic energy supply
- Which of the following describes the flow of blood?
Answer: right atrium, right ventri- cle, lungs, left atrium, left ventricle, body
- On average, how many times per minute does the SA node discharge at rest?
Answer: 60-80
- Which of the following are the two main divisions of the skeletal system?
Answer: - appendicular and axial
- Some of the highest bone mineral densities have been seen in which of the
following types of athletes?
Answer: gymnasts
- What joint comprises the ankle and wrist joints?
Answer: biaxial
- Which of the following is the order of the phases of a muscle contraction?-
Answer: resting, excitation-contraction coupling, contraction, recharge, relaxation
- / 3
- The chronotropic effect is caused by stimulation of the nervous system and
causes the heart rate to .
Answer: sympathetic; increase
- Which of the following substances regulates muscle actions?
Answer: Calcium
- Which of the following substances acts as the neuromuscular junction to excite
the muscle fibers of a motor unit?
Answer: Acetylcholine
- When throwing a baseball, an athlete's arm is rapidly stretched just before
throwing the ball. Which of the following structures detects and responds to that stretch by reflexively increasing muscle activity?
Answer: Muscle Spindle
- From which of the following is the heart's electrical impulse normally initiated?
Answer: SA node
- Which of the following occurs during the QRS complex of a typical ECG?
Depolarization of the Atrium Repolarization of the Atrium Repolarization of the Ventricle Depolarization of the Ventricle
Answer:
Depolarization of the Atrium Repolarization of the Ventricle
- The Krebs cycle occurs in which portion of the cell?
Answer: mitochondria
- The law of mass action states which of the following?
The rate of product formation is greatly influenced by the concentrations of the reactants.The concentrations of reactants or products will drive the direction of the reactions.A stronger action potential cannot produce a stronger contraction.The weight or mass of an object creates a stronger action potential.Answer: The concentrations of reactants or products will drive the direction of the reactions.
- An aerobic endurance athlete is trying to give himself a competitive edge over 2 / 3
his opponents. To improve his lactate threshold, what type of training should he engage in, and in what direction would this shift his threshold?
Answer: high intensity; shifts to the right
- Two athletes are competing in upcoming competitions, a weightlifting meet and
a marathon. Which energy systems will each be primarily using, respectively?
Answer: phosphagen and oxidative
- Which of the following describes the portion of the total energy cost of exercise
that must be supplied through anaerobic mechanisms due to the slow response of the aerobic system to the initial increase in the demand for energy?oxygen deficit EPOC oxygen debt recovery O2
Answer: oxygen deficit
- The excess postexercise oxygen consumption experienced by athletes is caused
by all of the following EXCEPT decreases in body temperature increased protein turnover ATP-CP resynthesis changes in energy efficiency during recovery
Answer: decreases in body temperature
- If an athlete completes a maximum sprint interval in 10 seconds as part of an
interval training workout, which of the following is a recommended length of the rest period before the next sprint?
Answer: 2 minutes
- During higher-intensity exercises, athletes often experience peripheral fatigue.
Which of the following is believed to be the reason for this type of fatigue?lactate gluconeogenesis increase in muscle pH metabolic acidosis
Answer: metabolic acidosis
- An athlete is used to performing high-intensity aerobic exercise (90%
- / 3
VO2max); however, she will now be changing to longer-duration, submaximal exercise on a regular basis. This change in training strategy will typically result in what changes concerning energy supply?Answer: transition from almost exclusively carbohydrate to mostly fat