CSCS Exam Practice
Questions and Answers
Updated 2026
Each muscle fiber is surrounded be a connective tissue called?
a)Fasiciculi
b)Perimysium
c)Endomysium
d)Epimysium - Answerc)Endomysium
What is released from the SR into the Myofibril, causing tension development in a muscle?
a)Ca+ ions that bind to troponin
b)Ca+ ions that bind to tropomyosin
c)sodium ions that bind to troponin
d)sodium ions that bind to tropomyosin - Answera) Ca+ ions that bind to troponin
What type of muscular contraction occurs in the pec major during the slow, controlled,
downward phase of the bench press?
a)concentric
b)isometric
c)myoconcentric
d) eccentric - Answerd)eccentric
What is the thick structural protein inside the sarcomere?
,a)actin
b)myosin
c)sarcoplasm
d)sarcolemma - Answerb)myosin
A muscle fiber that is small in diameter has a slow contraction speed, and high capillary
density would be classified as?
a)type I
b)type IIa
c)type IIb
d) type IIc - Answera)type I
Through which of the following valves does blood flow after contraction of the right atrium?
a)aortic
b)pulmonary
c)mitral
d)tricuspid - Answerd)tricuspid
During a typical ECG atrial depolarization is represented by?
a)P-wave
b)QRS complex
c)T-wave
d)U-wave - Answera)P-wave
,While reading an ECG, electrical potential that depolarizes the ventricles is represented by?
a)P-wave
b)QRS complex
c)T-wave
d)U-wave - Answerb)QRS complex
What blood vessel functions to exchange O2, fluid, nutrients, electrolytes, hormones, and
other substances between the blood and the interstitial fluid in the various tissues of the
body?
a)arteries
b)capillaries
c)veins
d)venues - Answerb)capillaries
Where are normal rhythmic electrical impulses initiated in the heart?
a)sinoartiral (SA) node
b)atrioventricular (AV) bundle
c)Purkinje fibers
d)atrioventricular (AV) node - Answera)sinoratrial (SA) node
When performing a biceps curl, tension in the biceps muscle increases. Which of the
following structures detects and responds to the tension by reflexively reducing muscle
activation?
a) golgi tendon organ (GTO)
b) muscle spindle
, c)pacinian corpuscle
d) lamellar organ - Answera) Golgi tendon organ (GTO)
An athlete training for a marathon would benefit from having a high concentration of which
muscle fiber type?
a)type I
b)type IIa
c)type IIb
d)type III - Answera)type I
A college football player decides to add 30 min. of intense stationary cycling every other day
to his current training program. Which of the following best describes the effect the
stationary cycling will have on his performance?
a)no effect on strength gains
b)strength gains enhanced
c)strength gains compromised
d)number of muscle fibers increased - Answerc) strength gains compromised
Which of the following represents the correct transmission of the heart's electrical implies?
a)AV node, AV bundle, SA node, Purkinje fibers
b)SA node, AV node, AV bundle, Purkinje fibers
c)SA node, Purkinje fibers, AV node, AV bundle
d)AV node, AV bundle, Purkinje fibers, SA node - Answerb)SA node, AV node, AV bundle,
Purkinje fibers
Which of the following represents a muscle of expiration?
Questions and Answers
Updated 2026
Each muscle fiber is surrounded be a connective tissue called?
a)Fasiciculi
b)Perimysium
c)Endomysium
d)Epimysium - Answerc)Endomysium
What is released from the SR into the Myofibril, causing tension development in a muscle?
a)Ca+ ions that bind to troponin
b)Ca+ ions that bind to tropomyosin
c)sodium ions that bind to troponin
d)sodium ions that bind to tropomyosin - Answera) Ca+ ions that bind to troponin
What type of muscular contraction occurs in the pec major during the slow, controlled,
downward phase of the bench press?
a)concentric
b)isometric
c)myoconcentric
d) eccentric - Answerd)eccentric
What is the thick structural protein inside the sarcomere?
,a)actin
b)myosin
c)sarcoplasm
d)sarcolemma - Answerb)myosin
A muscle fiber that is small in diameter has a slow contraction speed, and high capillary
density would be classified as?
a)type I
b)type IIa
c)type IIb
d) type IIc - Answera)type I
Through which of the following valves does blood flow after contraction of the right atrium?
a)aortic
b)pulmonary
c)mitral
d)tricuspid - Answerd)tricuspid
During a typical ECG atrial depolarization is represented by?
a)P-wave
b)QRS complex
c)T-wave
d)U-wave - Answera)P-wave
,While reading an ECG, electrical potential that depolarizes the ventricles is represented by?
a)P-wave
b)QRS complex
c)T-wave
d)U-wave - Answerb)QRS complex
What blood vessel functions to exchange O2, fluid, nutrients, electrolytes, hormones, and
other substances between the blood and the interstitial fluid in the various tissues of the
body?
a)arteries
b)capillaries
c)veins
d)venues - Answerb)capillaries
Where are normal rhythmic electrical impulses initiated in the heart?
a)sinoartiral (SA) node
b)atrioventricular (AV) bundle
c)Purkinje fibers
d)atrioventricular (AV) node - Answera)sinoratrial (SA) node
When performing a biceps curl, tension in the biceps muscle increases. Which of the
following structures detects and responds to the tension by reflexively reducing muscle
activation?
a) golgi tendon organ (GTO)
b) muscle spindle
, c)pacinian corpuscle
d) lamellar organ - Answera) Golgi tendon organ (GTO)
An athlete training for a marathon would benefit from having a high concentration of which
muscle fiber type?
a)type I
b)type IIa
c)type IIb
d)type III - Answera)type I
A college football player decides to add 30 min. of intense stationary cycling every other day
to his current training program. Which of the following best describes the effect the
stationary cycling will have on his performance?
a)no effect on strength gains
b)strength gains enhanced
c)strength gains compromised
d)number of muscle fibers increased - Answerc) strength gains compromised
Which of the following represents the correct transmission of the heart's electrical implies?
a)AV node, AV bundle, SA node, Purkinje fibers
b)SA node, AV node, AV bundle, Purkinje fibers
c)SA node, Purkinje fibers, AV node, AV bundle
d)AV node, AV bundle, Purkinje fibers, SA node - Answerb)SA node, AV node, AV bundle,
Purkinje fibers
Which of the following represents a muscle of expiration?
