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What are the components of blood? Describe each of them In detail with labeled diagram. | web4study
What are the components of blood? Describe each of them In detail with labeled diagram.
Blood is a special kind of tissue which Circulates in fluid form in the body, It transports different substances in our body it is composed of a fluid part, the plasma, and a cellular part, the corpuscles.
In man, about 55%. of the blood consists of the fluid part called plasma, It is color-less and consists of water (90%), proteins (7-8 % ), glucose, amino acids, salts, enzymes, hormones, wastes, gases etc,
Corpuscles or blood cells are of two types, red blood corpuscles, and white blood corpuscles. Besides these corpuscles, blood contains fragments of a larger cell; these fragments are termed as platelets.
(i) Red Blood Corpuscles:
Red blood corpuscles in mammals are circular, disclike, biconcave cells. Their mature R.B.Cs do not have the nucleus, mitochondria, endoplasmic reticulum and Golgi bodies. The mature R.B.Cs is a bag of hemoglobin. Since hemoglobin transports oxygen and carbon dioxide it is called respiratory pigment. It readily combines with oxygen in lungs and transports it to all the tissues of the body. Deficiency of hemoglobin slows down the metabolic activities.
(ii) White Blood Corpuscle
White Blood Corpuscles are colorless, irregular in shape, nucleated and larger than R.B.Cs. W.B.Cs are commonly known as the police of the body because they protect the body by killing the germs that somehow enter the body.
They have the ability to a differential between their own body cells and the foreign cells. W.B.Cs is of different types, each of which plays a unique role in defense of the body.
Platelets are fragments of large cell present in mammals. They play a very important role in clotting of blood.