Question

what is blood ? And what are is components ?

Answer 1

Blood is a specialized body fluid. It has four maincomponents: plasma, red blood cells, white bloodcells, and platelets.

Answer 2

$\huge\textbf{What is Blood..?}$

Blood is a fluid which gives us life, health and growth... It is a special connective tissue constituting a fluid matrix, plasma and formed elements.
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$\textbf{Components}$

Red Blood Cells (RBCs), White Blood Cells (WBCs), Platelets are the components of Blood.
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$\textbf{FUNCTIONS}$

→ Transport of oxygen :- 

A small amount of oxygen is carried by plasma as it's aqueous solution from lungs to tissues for oxidation of blood.

→ Transport of Hormones :- 

The endocrine gland secrete their hormones directly into the blood, which carries them to their target organs.

→ Transport of Waste products :- 

Plasma carries nitrogenous waste namely; urea, uric acid, etc. from the liver and other tissues to the kidney for removal.

→ Regulation of water balance :- 

Plasma regulates the water balance of the body, as it supplies water to the tissues and receives the excess water formed in metabloic process.

→ Regulation of pH :- 

Plasma helps to regulate the pH of the body fluids.

→ Regulation of the body temperature :-

Plasma carried heat from the heat producing tissues such as muscles and glands to others.

→ Platelets :- 

Platelets play a role in blood clotting.

→ WBCs (white blood corpuscles) :-

The WBCs act as the soilders, scavengers and builder of the body.
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