100% CORRECT ANSWERS|LATEST
Each muscle fiber is surrounded by a connective tissue called? -
ANSWER Endomysium
What is released from the sarcoplasmic reticulum into the myofibril, causing tension
development in a muscle? - ANSWER Calcium ions that bind to troponin
What type of muscular contraction occurs in the pectoralis major during the slow,
controlled, downward phase of a bench press? - ANSWER Eccentric
What is the thick structural protein inside the sarcomere? - ANSWER Myosin
A muscle fiber that is small in diameter has a slow contraction speed, and a high capillary
density would be classified as? - ANSWER Type I
Through which of the following valves does blood flow after contraction of the right atrium?
- ANSWER Tricupsid
During a typical electrocardiogram, atrial depolarization is represented by? -
ANSWER P-wave
While reading an ECG, electrical potential that depolarizes the ventricles is represented by? -
ANSWER QRS complex
1
,What blood vessel functions to exchange oxygen, fluid, nutrients, electrolytes, hormones,
and other substances between the blood and the interstitial fluid in the various tissues of
the body? - ANSWER Capillaries
Where are normal rhythmic electrical impulses initiated in the heart? -
ANSWER Sinoatrial (SA) node
When performing a biceps curl, tension in the biceps brachii muscle increases. Which of the
following structures detects and responds to the tension by reflexively reducing muscle
activation? - ANSWER Golgi tendon organ
An athlete training for a marathon would benefit from having a high concentration of which
muscle fiber type? - ANSWER Type I
A college football player decides to add 30 minutes of intense stationary cycling every other
day to his current resistance training program. Which of the following best describes the
effect the stationary cycling will have on his performance? - ANSWER Strength gains
compromised
Which of the following represents the correct transmission of the heart's electrical impulse?
- ANSWER SA node, AV node, AV bundle, Purkinje fibers
Which of the following represents a muscle of expiration? - ANSWER Internal
Intercostal
Identify the correct path in which inhaled air is distributed to the lungs. -
ANSWER Trachea, Bronchi, Bronchioles, Alveoli
Heavy resistance exercise has what effect on cardiac output? - ANSWER No change
2
, What is the value of a metabolic equivalent (MET) - ANSWER 3.5 ml of oxygen per
kilogram of body weight per minute
The phosphagen energy system would primarily supply ATP for which of the following
activities? - ANSWER 100-m dash
Which of the following pathways/systems has the highest capacity for energy production? -
ANSWER Oxidation of fats and proteins
A male athlete fatigues during the running of a marathon and must pull out of the race,
which is the most probable factor that limited his performance in the race. -
ANSWER Depleted muscle glycogen
Which of the following is the primary energy system at work when the body is at rest? -
ANSWER Oxidative
ATP used during the 400-m dash would be primarily supplied from what energy system? -
ANSWER Fast glycolysis
Which of the following has the greatest influence on the energy system used for a given
exercise? - ANSWER Intensity
Which energy system results in the formation of the organic end product lactic acid? -
ANSWER Fast glycolysis
A female weightlifter is only able to complete 8 repetitions of a 10 RM set of power cleans.
Which of the following factors is the least likely to have contributed to her missed
repetitions? - ANSWER Fat Stores
3
Each muscle fiber is surrounded by a connective tissue called? -
ANSWER Endomysium
What is released from the sarcoplasmic reticulum into the myofibril, causing tension
development in a muscle? - ANSWER Calcium ions that bind to troponin
What type of muscular contraction occurs in the pectoralis major during the slow,
controlled, downward phase of a bench press? - ANSWER Eccentric
What is the thick structural protein inside the sarcomere? - ANSWER Myosin
A muscle fiber that is small in diameter has a slow contraction speed, and a high capillary
density would be classified as? - ANSWER Type I
Through which of the following valves does blood flow after contraction of the right atrium?
- ANSWER Tricupsid
During a typical electrocardiogram, atrial depolarization is represented by? -
ANSWER P-wave
While reading an ECG, electrical potential that depolarizes the ventricles is represented by? -
ANSWER QRS complex
1
,What blood vessel functions to exchange oxygen, fluid, nutrients, electrolytes, hormones,
and other substances between the blood and the interstitial fluid in the various tissues of
the body? - ANSWER Capillaries
Where are normal rhythmic electrical impulses initiated in the heart? -
ANSWER Sinoatrial (SA) node
When performing a biceps curl, tension in the biceps brachii muscle increases. Which of the
following structures detects and responds to the tension by reflexively reducing muscle
activation? - ANSWER Golgi tendon organ
An athlete training for a marathon would benefit from having a high concentration of which
muscle fiber type? - ANSWER Type I
A college football player decides to add 30 minutes of intense stationary cycling every other
day to his current resistance training program. Which of the following best describes the
effect the stationary cycling will have on his performance? - ANSWER Strength gains
compromised
Which of the following represents the correct transmission of the heart's electrical impulse?
- ANSWER SA node, AV node, AV bundle, Purkinje fibers
Which of the following represents a muscle of expiration? - ANSWER Internal
Intercostal
Identify the correct path in which inhaled air is distributed to the lungs. -
ANSWER Trachea, Bronchi, Bronchioles, Alveoli
Heavy resistance exercise has what effect on cardiac output? - ANSWER No change
2
, What is the value of a metabolic equivalent (MET) - ANSWER 3.5 ml of oxygen per
kilogram of body weight per minute
The phosphagen energy system would primarily supply ATP for which of the following
activities? - ANSWER 100-m dash
Which of the following pathways/systems has the highest capacity for energy production? -
ANSWER Oxidation of fats and proteins
A male athlete fatigues during the running of a marathon and must pull out of the race,
which is the most probable factor that limited his performance in the race. -
ANSWER Depleted muscle glycogen
Which of the following is the primary energy system at work when the body is at rest? -
ANSWER Oxidative
ATP used during the 400-m dash would be primarily supplied from what energy system? -
ANSWER Fast glycolysis
Which of the following has the greatest influence on the energy system used for a given
exercise? - ANSWER Intensity
Which energy system results in the formation of the organic end product lactic acid? -
ANSWER Fast glycolysis
A female weightlifter is only able to complete 8 repetitions of a 10 RM set of power cleans.
Which of the following factors is the least likely to have contributed to her missed
repetitions? - ANSWER Fat Stores
3
