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प्रश्न
What are the cellular components of blood?
उत्तर
Blood is a fluid connective tissue. It is composed of plasma (fluid) and blood cells (corpuscles).
Cellular components of blood (blood corpuscles) constitute about 45% of blood volume.
Three types of blood cells are:
(i) Erythrocytes or red blood cells: They are most abundant blood cells. Normal RBC count is 5-5.5 million/mm3 in males and 4.5-5 million/mm3 in females) RBCs help in transport of gases and maintain blood pH.
(ii) Leucocytes or white blood cells: The normal WBC count is 5000-6000/mm3 of blood. They are involved in immune response of body and act as soldiers and scavangers.
(iii) Thrombocytes or blood platelets: There are about 2,50,000 platelets/mm3 of blood. They are involved in blood clotting.
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संबंधित प्रश्न
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Give three functions of blood.
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Cartilage
Name the kind of cells found in the following place:
Surface of the human skin
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Blood is which type of tissue
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Differentiate between elastic fibres and elastic connective tissue.
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______ acts as a fat reservoir.
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White blood corpuscles contain respiratory pigment hemoglobin.
Identify the figure given below
- Label the parts A, B, and C
- What is the chemical composition of the tissue?
How does WBC help in defense?
Which one of the following is NOT a connective tissue?
