Blood depleted of oxygen.
Blood saturated/loaded with oxygen.
Linked to the lungs.
Events of one heart beat.
A resting heart rate (HR) below 60.
Increase in size of heart muscle wall.
Blood ejected from heart ventricles every beat.
Exercise performed at an intensity below an atheltes maximal aerobic capacity or maxx VO2 - hence it represents aerobic work.
Blood returning to the heart
Capacity of heart ventricles to contract.
Additional oyxgen consumption during recovery, above that usually required when at rest.
Nerves which stimulate muscle tissue causing motor movement.
nerves which transmit information to Central Nervous System
E.G. from receptors to the CCC (Cardiac Control Centre)
Sense organs that pick up stimuli, which are relayed to the brain (medulla oblongata)
SV dependent upon venous return = any increase in VR causes in increase in SV and Q
Involuntary muscle found in blood vessel walls.
Widening of arterial blood vessels
Narrowing of artieral blood vessel walls.
A sensory receptor that is selective for a chemical substance
A sensory receptor that responds to pressue or stretch. Refers to the blood pressue receptors of the carotid artery and aorta.
A measure of acidity. A low pH = high acidity and vice versa
Onset of blood lactate accumulation. The point at which the body produces lactic acid quicker than it can remove it, causing an increase in lactic acid levels leveks which eventually cause muscle fatigue.
Protein that acts as a catalyst for bodily reactions.
Resistance to blood flow
Red pigment in muscles that stores O2
Anything that improves performance
Start of anaerobic work