Fatty deposits made up of white blood cells (that have already taken up low-density lipoproteins). They occur in the walls of arteries & often associated with high cholesterol levels in blood.
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Myocardial infarction
AKA a heart attack- MI refers to reduced supply to the muscle of the heart (cardiac muscle/myocardium). It results from a blockage in the coronary arteries.
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Atrium
There are two of these chambers, one on each side of the heart (above the ventricles).The atria are thin-walled (only has to pump to the ventricle)& elastic and stretch as they collect blood.
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Ventricle
Two of these- below the atria. Has a thicker muscular wall as it has to pump blood some distance- either to the lungs or to the rest of the body.
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Aorta
This is connected to the left ventricle & it carries oxygenated blood to all parts of the body (except the lungs).
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Vena Cava
It's connected to the right atrium and brings deoxygenated blood back from the tissues of the body.
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Pulmonary artery
The pulmonary artery is connected to the right ventricle and carries deoxygenated blood to the lungs (where its oxygen is replenished & CO2 removed). (Unusually for an artery, it carries deoxygenated blood.)
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Pulmonary vein
Connected to the left atrium and brings oxygenated blood back from the lungs- unusually for a vein, it carries oxygenated blood.
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Aneurysm
Atheromas that lead to formation of a thrombus also weaken artery walls. These weakened points-swell to form balloon-like,blood-filled structure called an aneurysm.
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Sinoatrial node (SAN)
An area of heart muscle in the right atrium that controls and coordinates the contraction of the heart (also known as the pacemaker).
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Atrioventricular node (AVN)
Group of cells which lies between the atria.
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Coronary heart disease (CHD)
Any condition that affects the coronary arteries that supply heart muscle e.g. atheroma,thrombosis
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Stroke volume
The volume of blood pumped at each ventricular contraction of the heart.
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Systole
Stage in the cardiac cycle where the heart muscle contracts. Occurs in 2 stages : atrial systole (when atria contract) & ventricular systole (when ventricles contract).
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Diastole
The stage in cardiac cycle where the heart muscle relaxes.
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Other cards in this set
Card 2
Front
AKA a heart attack- MI refers to reduced supply to the muscle of the heart (cardiac muscle/myocardium). It results from a blockage in the coronary arteries.
Back
Myocardial infarction
Card 3
Front
There are two of these chambers, one on each side of the heart (above the ventricles).The atria are thin-walled (only has to pump to the ventricle)& elastic and stretch as they collect blood.
Back
Card 4
Front
Two of these- below the atria. Has a thicker muscular wall as it has to pump blood some distance- either to the lungs or to the rest of the body.
Back
Card 5
Front
This is connected to the left ventricle & it carries oxygenated blood to all parts of the body (except the lungs).
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