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Chapter 2 Personal Trainer AFAA || Questions and 100% Accurate Answers.

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Exercise physiology correct answers science of how the body operates during exercise & at rest Describe the structure of the heart correct answers Muscular organ about the zie of a fist that is divided into left & right sides that are separated by a wall / septum. Performs 2 distinct functions,...

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Chapter 2 Personal Trainer AFAA || Questions and 100%
Accurate Answers.
Exercise physiology correct answers science of how the body operates during exercise & at rest

Describe the structure of the heart correct answers Muscular organ about the zie of a fist that is
divided into left & right sides that are separated by a wall / septum.
Performs 2 distinct functions, so it's AKA a double-pump.
Has upper & lower chambers (atria & ventricles).

3 layers of tissue that the heart is composed of correct answers 1. Epicardium
2. Myocardium
3. Endocardium

Pericardium correct answers loose, yet protective sac that contains the heart

Epicardium correct answers thin membrane located on outermost layer of the heart

Myocardium correct answers thickest & strongest in the walls of the left ventricle, the chamber
responsible for pumping blood throughout the body

Endocardium correct answers smooth membrane that lines the chambers of the heart

Myocardial Infaction (MI) correct answers heart attack
occurs due to lack of blood flow through the coronary arteries to the heart muscle

Infaction correct answers blockage of blood flow
When an infaction occurs, those portions of the myocardium affected die.

Cardiac Cycle correct answers contraction / relaxation pattern produced by the heart

Systole correct answers ventricle contraction phase

Diastole correct answers relaxation phase

Stroke Volume correct answers amount of blood pumped with each beat / systole

Heart Rate (HR) correct answers Number of times the heart beats per minute

Cardiac Output correct answers amount of blood pumped per minute
Heart Rate X Stroke Volume

SA Node (Pacemaker) correct answers Dictates regulation of the contractions of the heart

What is the average resting heart rate? correct answers 60-80 beats per minute

, ECG / EKG correct answers electrocardiogram device used to diagnose cardiac problems by
measuring the heart's electrical activity

Name the 3 circulatory system blood carrying vessels, which produce a circuit of blood flow
throughout the body correct answers 1. arteries
2. capillaries
3. veins

Ischemia correct answers lack of blood flow

Glucose correct answers blood sugar that comes from carbohydrates

Lactic acid correct answers anaerobic pathway that provides rapid source of energy, created from
pyruvic acid

Venous Return correct answers as the blood leaves the capillaries, it enters the venous system,
which returns blood back to the heart

myosin correct answers myofilament within sarcomeres, attaches to and pulls actin to shorten
muscle

actin correct answers one of the two proteins

maximal oxygen uptake (VO2max) correct answers volume of oxygen at the cellular level, max
we can take in

valsalva maneuver correct answers occurs when a person holds their breath during strenuous
activity

minute ventilation correct answers total amount of air breathed per minute

residual lung volume correct answers amount of air left in the lungs after a complete & total
forced exhale

forced vital capacity correct answers amount of air that can be forcefully exhaled after a maximal
inhale

total lung capacity correct answers sum of the residual volume & the forced vital capacity

macronutrients correct answers protein, carb, & fat that are either stored or used for the energy
necessary to live & perform biological work

photosynthesis correct answers transformation of light energy absorbed by green plants

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