The heart

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  • Created by: Rachel
  • Created on: 31-03-13 15:14

Cells, tissues and organs

  • A group of the same type of specialised cells forms a tissue (e.g. a muscles tissue is made of muscle cells)
  • An organ contains several different tissues working together to carry out a particular function in the body
  • The heart is an organ that pumps blood to the lungs and around the body

The structure and function of the heart

  • Blood coming fom the tissues is low in oxygen (deoxygenated
  • It is pumped by the heart to the lungs where the haemoglobin in red blood cells picks up oxygen and the blood becomes oxygenated 
  • This oxygenated blood returns to the heart and is pumped around the body to the tissues and cells
  • The left and right sides of the heart work together, filling and emptying at the same time
  • However, to explain the the different parts of the heart


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