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प्रश्न
What are the cellular components of blood?
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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
Name the connective tissue with a fluid matrix.
Classify connective tissue and give one example of each type.
Name the kind of tissue found at the joint between two long bones.
Name one place in living organisms where the following tissues is located:
Cartilage
Differentiate between:
Bone and Cartilage
Answer the following question.
Priya got injured in an accident and hurt her long bone and later on she was also diagnosed with anaemia. What could be the probable reason?
What type of fibres are found in connective tissue matrix?
Differentiate white adipose tissue from brown adipose tissue.
Write the classification of connective tissue and their functions.
Which of the following does not lose their nucleus at maturity?
A nail is inserted in the trunk of a tree at a height of 1 metre from the ground level. After 3 years the nail will
Give reasons for
Branches of a tree move and bend freely in high wind velocity.
What is the role of RBC?
Give one reason for the following:
- Blood is fluid connective tissue.
- Skeletal muscles are voluntary muscles.
- Heart muscles are involuntary in nature.
How does WBC help in defense?
What is special about tissue present in the heart?
