Describe the composition of human blood.

Blood is a fluid connective tissue which circulates in our body. The main components of blood are plasma (55%) and blood corpuscles (45%).

Plasma is straw-coloured fluid which contains 85-90% water and 5-10% other substances like proteins, salts and hormones. There are three types of blood corpuscles:

● RBC (Red blood cells)

● WBC (White blood cells), and

● Platelets