Certification Questions and
Answers| Updated
Myocardial Infarction
Hear attack occurs due to lack of blood flow through the coronary arteries to the
heart muscle
Ischemia
lack of blood flow
Stroke Volume
the amount of blood pumped with each beat or systole
Cardiac Output
heart rate x stroke volume. usually measured in liters (or milliliters) of blood
pumped per minute
,Venous Return
The amount of blood returned to the heart by the veins
Valsalva Maneuver
occurs when a person holds his or her breath during a strenuous activity, such as
lifting weights or shoveling snow
Minute Ventilation
total amount of air breathed per minute
Residual lung volume
amount of air remaining in the lungs after a complete and total forced exhale
Forced vital capacity
amount of air that can be forcefully exhaled after a maximal inhalation
Total lung capacity
sum of the residual volume and the forced vital capacity
Glucose
body's usable form of carbohydrate
,Lactic Acid
produced in muscles during rapid exercise when the body cannot supply enough
oxygen to the tissues
Glycolysis
a metabolic process that breaks down carbohydrates and sugars through a series
of reactions to either pyruvic acid or lactic acid and release energy for the body in
the form of ATP
Mitochondria
a subcellular structure where oxidation takes place
Beta oxidation
A metabolic sequence that breaks fatty acids down to two-carbon fragments that
enter the citric acid cycle as acetyl CoA.
Krebs cycle
the acetyl CoA formed in the first component of aerobic metabolism enters into
the citric acid cycle
Electron transport system
the final sequence of reactions in the aerobic production of ATP
Maximal oxygen uptake
, the maximum amount of oxygen consumed and utilized by the body during an all-
out effort to exhaustion
Excess Post-Exercise Oxygen Consumption
additional oxygen consumed immediately after an exercise bout when the body is
no longer exercising
Sarcomere
each section of a myofibril in muscle
Actin
structural protein that makes up the thin filaments of myofibrils; functions in
muscle contraction
Anatomical Position
standing position with hands down and palms facing forward
Supine
lying on the spine