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10 Cards in this Set

  • Front
  • Back

Identify the 4 chambers of the heart

Right atrium. left atrium


right ventricle left ventricle

Describe the flow of blood through the heart and it's associated blood vessels

Vena cava > right atrium > right ventricle > pulmonary artery > lungs > pulmonary vein > left atrium > left ventricle > aorta

Explain the difference in thickness of the walls of the ventricles

The muscle around the ventricle is much thicker on the left side of the heart than the right side. The wall of the left ventricle is thick because it pumps blood around the body whereas the wall of the right ventricle is less thick because it pumps blood to the lungs

What supplies the heart with blood

The coronary artery

Describe the function of the veins

Carry blood to the heart from other organs in the body


Thin elastic walls and wide area


Contains valves


Lower pressure

Describe arteries

Carry blood away from the heart and into other organs


Thick elastic walls which with stand blood being pumped at high pressure

Describe capillaries

One cell thick very very narrow channel


Networks formed in every organ between arteries and veins


Exchange of materials between blood and the living tissues takes place through their thin walls

Describe the structure and function of red blood

It is a transporting fluid. It carries vital substances to all part of the body. It contains plasma red blood cells white blood cells and platelets

Describe haemoglobin

Contains iron


transport oxygen

Describe the features of a capillary network that allows efficient gas exchange

Quick exchange of blood between tissues and capillaries because of very thin walls


Have a large surface area that allow diffusion to take place as quickly as possible