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CSCS EXAM chapters

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CSCS EXAM chapters 1-12 Question and answers already passed 1. which of the following substances regulates muscle actions a. potassium b. calcium c. troponin d. tropomyosin - correct answer b. calcium 1. which of the following substances act as neuromuscular junction to excite the m...

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  • November 28, 2024
  • 18
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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CSCS EXAM chapters 1-12 Question and
answers already passed
1. which of the following substances regulates muscle actions
a. potassium
b. calcium
c. troponin
d. tropomyosin - correct answer ✔b. calcium


1. which of the following substances act as neuromuscular junction to excite
the muscle fiber of a motor unit.
a. acetylcholine
b. ATP
c. creatine
d. serotonin - correct answer ✔a. acetylcholine


1. 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?
a. Golgi tendon organ
b. muscle spindle
c. extrafusal muscle
d. pacinian corpuscle - correct answer ✔b. muscle spindle


1. From which of the following is the heart's electrical impulse normally
initiated?
a. AV node

,b. SA node
c. the brain
d. the sympathetic nervous system - correct answer ✔b. SA node


1. 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 - correct answer ✔b. II and IV only


2. which of the following is the definition of power?
a. mass x acceleration
b. force x distance
c. force x velocity
d. torque x time - correct answer ✔c. force x velocity


2. to compare performance of Olympic weightlifters to different body weights,
the classic formula divides the load lifted by the athlete's...
a. body weight
b. body weight squared
c. lean body weight
d. body weight to the two- thirds power - correct answer ✔d. body weight to
the two- thirds power

, 2. during the free weight exercise, muscle force varied with which of the
following?
I. perpendicular distance from the weight to the body joint
II. joint angle
III. movement acceleration
IV. movement velocity squared
a. I and III only
b. II and IV only
c. I, II and III only
d. II, III and IV only - correct answer ✔a. I and III


2. a vertical jump involves knee, hip, and shoulder movement primarily in
which to the following anatomical planes?
a. sagittal
b. perpendicular
c. frontal
d. transverse - correct answer ✔a. sagittal


2. an athlete is performing a concentric isometric elbow flexion and extension
exercise. which of the following types of levers occurs at the elbow during
exercise
I. frist class: have the fulcrum between the force and the load
II. second class: the load is located between the effort and the fulcrum
III. third class: the effort is located between the load and the fulcrum
a. first class only
b. second class only

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