the volume of blood pumped out by the heart ventricles per minute
1 of 24
cardiac hypertrophy
the thickening of the muscular wall of the heart so it becomes bigger and stronger, also can mean a larger ventricular cavity
2 of 24
bradycardia
a decrease in resting heart rate to below 60 beats per minute
3 of 24
atherosclerosis
occurs when arterries harden and narrow as they become clogged up by fatty deposits
4 of 24
atheroma
a fatty deposit found in the inner lining of an artery
5 of 24
angina
chest pain that occurs when the blood supply through thr coronary arteries to the muscles of the heart is restricted
6 of 24
stroke
a stroke occurs when the blood supply to the brain is cut off
7 of 24
steady state
where the athlete is able to meet the o2 demand with the o2 supply
8 of 24
steady state
where the athlete is able to meet the o2 demand with the o2 supply
9 of 24
blood pressure
the force exerted by the blood against the blood vessel wall
10 of 24
systolic pressure
the pressure in the arteries when the ventricles are contracting
11 of 24
diastolic pressure
the pressure in the arteries when the ventricles are relaxing
12 of 24
venous return
the return of the blood to the right side of the heart via the vena cava
13 of 24
plasma
the fluid part of blood (mainly water) that surrounds blood cells and transports them
14 of 24
haemoglobin
an iron-containing pigment found in red blood cells, which combines with o2 to form oxyhaemoglobin
15 of 24
myoglobin
often called muscle haemoglobin. it is an iron-containing muscle pigment in slow-twitch muscle fibres which has a higher affinity for o2 than haemoglobin. it stores the o2 in the muscle fibres which can be used quickly when exercise begins
16 of 24
mitochondria
often reffered to as the powerhouse of the cell as respiration and energy production occur there
17 of 24
bohr shift
when an increase in blood co2 and a decrease in ph results in a reduction of the affinity of haemoglobin for o2
18 of 24
pH
a measure of acidity. the range goes from 1 to 14 and anything less than 7 indicates acidity
19 of 24
vascular shunt mechanism
the redistribution of cardiac output
20 of 24
vasodilation
the widening of the blood vessels to increase the flow of blood into the capillaries
21 of 24
vasoconstriction
the widening of the blood vessels to increase the flow of blood into the capillaries
22 of 24
vasoconstriction
the narrowing of the blood vessels to reduce blood flow into the cappillaries
23 of 24
arterio-venous fifference
the difference between the o2 content of the arterial blood arriving at the muscles and the venous blood leaving te muscles
24 of 24
Other cards in this set
Card 2
Front
the thickening of the muscular wall of the heart so it becomes bigger and stronger, also can mean a larger ventricular cavity
Back
cardiac hypertrophy
Card 3
Front
a decrease in resting heart rate to below 60 beats per minute
Back
Card 4
Front
occurs when arterries harden and narrow as they become clogged up by fatty deposits
Back
Card 5
Front
a fatty deposit found in the inner lining of an artery
Comments
No comments have yet been made