Each muscle fiber is surrounded by a connective tissue called? - answerEndomysium
What is released from the sarcoplasmic reticulum into the myofibril,
... [Show More] causing tension development
in a muscle? - answerCalcium 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? - answerEccentric
What is the thick structural protein inside the sarcomere? - answerMyosin
A muscle fiber that is small in diameter has a slow contraction speed, and a high capillary density
would be classified as? - answerType I
Through which of the following valves does blood flow after contraction of the right atrium? -
answerTricupsid
During a typical electrocardiogram, atrial depolarization is represented by? - answerP-wave
While reading an ECG, electrical potential that depolarizes the ventricles is represented by? -
answerQRS complex
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? - answerCapillaries
Where are normal rhythmic electrical impulses initiated in the heart? - answerSinoatrial (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?
- answerGolgi tendon organ
An athlete training for a marathon would benefit from having a high concentration of which
muscle fiber type? - answerType 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? - answerStrength gains compromised
Which of the following represents the correct transmission of the heart's electrical impulse? -
answerSA node, AV node, AV bundle, Purkinje fibers
Which of the following represents a muscle of expiration? - answerInternal Intercostal
Identify the correct path in which inhaled air is distributed to the lungs. - answerTrachea, Bronchi,
Bronchioles, Alveoli
Heavy resistance exercise has what effect on cardiac output? - answerNo change
What is the value of a metabolic equivalent (MET) - answer3.5 ml of oxygen per kilogram of body
weight per minute
The phosphagen energy system would primarily supply ATP for which of the following activities? -
answer100-m dash
Which of the following pathways/systems has the highest capacity for energy production? -
answerOxidation of fats and proteins. [Show Less]