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Write an essay on the composition of blood.

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∙ Blood is a type of connective tissue that is fluid in nature.
∙ Blood is divided into two components.
∙ There are two parts in blood. namely, plasma and formed elements (Red and white blood cells and platelets.
Red blood cells The most prevalent cells in blood are red blood cells, also known as erythrocytes.
∙ They have a biconcave form and are devoid of a nucleus.
∙ RBCs contain the pigment haemoglobin, which binds to oxygen and transports it.

White blood cells Leucocytes are another name for white blood cells.
∙ They're amoeboid, which means they can squeeze their way through blood arteries.
∙ Diapedesis is the medical term for this condition.
∙ Granulocytes and agranulocytes are two types of leucocytes.
∙ Neutrophils, basophils, and eosinophils are granulocytes.
∙ Monocytes (phagocytic in nature) and lymphocytes are agranulocytes (responsible for immune responses).

Platelets Platelets are also known as thrombocytes.
∙ They are the tiniest produced elements and are not real cells, but rather cell fragments.
∙ They are devoid of nuclei and perform a crucial function in clotting.
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