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S&C Quiz #1

Stack #1

QuestionAnswer
The pelvis is located _______ to the patella. Superior
Which of the following is the smallest contractile unit of skeletal muscle? Sarcomere
Which of the following describes Type I muscle fibers? Fatigue resistant with high aerobic energy supply
Which of the following describes the flow of blood? Right atrium, right ventricle, lungs, left atrium, left ventricle, body.
On average, how many times per minute does the SA node discharge at rest? 60-80
Which of the following are the two main divisions of the skeletal system? Appendicular and Axial
Some of the highest bone mineral densities have been seen in which of the following types of athletes? Gymnasts
What joint comprises the ankle and wrist joints? Biaxial
Which of the following is the order of the phases of a muscle contraction? Resting, excitation-contraction coupling, contraction, recharge, relaxation
The chronotropic effect is caused by. stimulation of the ____________ nervous system and causes the heart rate to ___________. Sympathetic; increase
Which anatomical plane divides the body into left and right sections? Sagittal
An athlete in the weight room is performing the barbell bench press. If he moves a mass of 75 kg with. an. acceleration of 2 m/s^2, what force is he exerting? 150 N
Neural control affects the maximal force output of a muscle by determining which and how many motor units are involved in a muscle contraction and the rate at which the motor units are fired. These two factors are known as what, respectively? Recruitment; rating coding
All of the following are considered to be advantages when using weight stack. machines EXCEPT Stimulates real-life activities
Which of the following is the resistive force encountered when one attempts to move an object while it is pressed against another object? Friction
Eighty-five to ninety percent of all intervertebral disk herniations occur at what two locations? L4-L5 and L5-S1
An athlete produced 840 watts of power in 0.6 seconds. How much work did this individual perform during the exercise? 504 J
Which of the muscles or muscle groups have a fusiform pennation? Biceps Brachii
As an athlete's body size increases, which of the following describes how body mass and muscular strength change? Body mass increases more rapidly than muscular strength.
Created by: jlanier1
 

 



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