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Transportation in Humans

Transportation in Humans Synopsis




  • In humans there is a circulatory system that uses blood or lymph as carries of materials (fluid exchange medium) and the heart as the pumping organ to help in circulation. 
  • Circulatory system in humans consists of blood vascular system (blood as carrier) and lymphatic system (lymph as carrier).

Blood Vascular System

Blood is a liquid connective tissue.

Functions of Blood




Composition of Blood


  • It is a light yellow-coloured or straw-coloured liquid.
  • It constitutes 55% of the total blood volume.
  • It mainly consists of

Blood Cells
  • Blood cells constitute 45% of the total blood volume.
  • Three kinds of blood cells are found in the blood.