Study 2.0 Flashcards
Mechanoreceptors
—sense distortion in body tissues.
Joint receptors
—respond to pressure,
acceleration, and deceleration of joints
Golgi tendon organs (GTO)
sense changes in
muscular tension.
Muscle spindles
sense changes in muscle
length.
Global stabilization system
attach from pelvis to spine.
Consists of: quadratus lumborum, psoas major, external oblique, rectus abdominis, gluteus medius,
adductor complex, portions of internal oblique.
Endocrine system
system of glands; secretes hormones to regulate bodily function
Ventricles
larger, inferior chambers of the heart; pump
blood out.
Right ventricle—
pumps deoxygenated blood to
lungs.
Left ventricle
pumps oxygenated blood to the
body.
Arteries
carry blood away from the heart.
Veins—
—transport blood back to the heart.
Arterioles
small branches of arteries; end in capillaries
Capillaries
smallest blood vessels; site of gas, chemical, and water exchange.
Stroke volume
amount of blood pumped with each contraction.
Heart rate
—the rate at which the heart pumps; average untrained adult = 70-80 bpm.
Cardiac output
volume of blood pumped per minute; heart rate × stroke volume.
Resting oxygen consumption (VO2)—
3.5 ml × kg-1 × min-1 = 1 metabolic equivalent (MET)
Maximal oxygen consumption (VO2max)
highest rate of oxygen transport and utilization achieved at
maximal physical exertion.
Aerobic
requires oxygen
Anaerobic
without oxygen.
Excess post oxygen consumption
(EPOC)—
elevation of metabolism after
exercise.
ATP-PC
Anaerotic
High-Intensity
10-15 Secs
Glycolysis
Anaerobic
Moderate-to-high Intensity
30-50 secs
Oxidative System
Long-Term Energy
Kebs Cycle
Superior
above a point of reference.
Inferior
—below a point of reference.