Heart Conduction System Flashcards
Diastole
Term used to describe the relaxation phase of the cardiac cycle. The heart ventricles are relaxed and fill with blood
Systole
Term used to describe the contraction phase of the cardiac cycle - the ventricles contract and pump blood to the arteries
Stroke volume
The volume of blood that leaves the heart during each contraction
Cardiac output
The amount of blood the heart pumps out. Measured in litres per minute (L/min)
Q = SV xHR
Fitness
The ability to meet and cope with the demands of the environment
Health
A state of complete physical, mental and social well-being and not merely the absence of disease and infirmity/injury.
Physical activity
Being active and taking part in exercise – can directly benefit your physical health and wellbeing.
Heart rate
The number of times the heart beats per minute
Anticipatory rise
Slight increase in heart rate usually before activity starts due to the expectation of exercise
What does the pulmonary artery do?
Carries de oxigenated blood from your heart to the lungs
What does the pulmonary vein do?
Carries oxegenated blood from the lungs to the heart