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CSCS Practice Questions and answers correctly solved What are the defined regions of a sarcomere - correct answer A band, H zone, I band, Z line What ratio of type I and Type II muscle fibers are likely for a competitive tennis player - correct answer High type I High type II Tennis re...

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  • November 28, 2024
  • 26
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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CSCS Practice Questions and answers
rated A+
What are the defined regions of a sarcomere - correct answer ✔A band, H
zone, I band, Z line


What ratio of type I and Type II muscle fibers are likely for a competitive tennis
player - correct answer ✔High type I High type II
Tennis requires both
slow twitch type I: aerobic energy, fatigue resistant, multiple tennis sets
fast twitch type II: easily ftigable, high force development for short sprints to
the ball
(Large locomotor muscles like quadrices have a mixture of type I and II )


What is the order of muscle structures form largest to smallest - correct
answer ✔muscle fiber, myofibril, sarcomere, sarcomere (actin and myosin)


what area of the heart is responsible for initiating rhytmic electrical impulses -
correct answer ✔SA node
SA node initiates rhythmic electical impulses of the cardiac cylce, contains
small locus of specialized muscle fibers that naturally generate action
potentials


When reading an electrocardiogram, ventricular repolarization is associated
with which ghrapical component - correct answer ✔T- Wave


what structure is responsible for the exchange of nutrients, hormones,
oxygen, fluids, and electrolytes between blood and the interstitial fluid of the
body tissues - correct answer ✔Capillaries

,responsible for exchange of nutrients hormones oygen fluids and electrolytes
between blood and interstitial tissues


Role of hemoglobin - correct answer ✔oxygen transport
Helps carry oxygen and iron in circulating red blood cells


role of arterioles and venules - correct answer ✔intermediately sized blood
vessels, walls too thick for cellular level exchange


regulate blood flow to capillaries


Myosin cross bridges attach to the actin filament when the sarcoplasmic
reticulum is stimulated to release: - correct answer ✔calcium ions
During excitation-contraction coupling phase, electrical discharge at muscle
starts chemical events that release calcium to SR, causing increase in
intracellular calcium which helps myosin attach to thin actin filaments


During heavy breathing, whiihc muslces help to elevate the ribs during
inspiration - correct answer ✔external intercostals, sternocleidomastoids,
interior serrati, scalenes


help to elevate ribs


Which sport related movements occur primarily in the transverse plane -
correct answer ✔(horizontal, upper and lower regions)
tennis backhand or forehand, swinging a baseball bat or golf club, chest flys,
seated twists, seated hip abduction or adduction

, Which muscles rotate the arm - correct answer ✔terese minor,
subscapularis, infraspinatus


Which type of lever is a biceps curl - correct answer ✔third class lever
(resistance one end, fulcrum at other end, muslce effort in the middle


Which movements take place in the saggital plane :
elbow extension, wrist flexion, shoulder abduction, neck left tilt - correct
answer ✔(saggital- divides into right and left) elbow extensions, wrist flexions


shoulder abduction and neck left tilt take place in the frontal plane


soccer dribbling requires which movement at the ankle in which plane -
correct answer ✔inversion: exposes inside of foot for adequate kicking
surface, in frontal plane (divides body front and back coronal plane )


circular muslce fascicle arrangement - correct answer ✔fascicles in
concentric ring


orbicularis oris ( surrounding mouth )


concergent muslce fascicle arrangement - correct answer ✔muscle with
broad origin, fan or triangle shaped


pectoralis major, gluteus medius


parallel/longitudinal muscle fascicle arrangement - correct answer ✔long axis
of fascicles parallel to long axis of muscle

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