Ten > Human Circulatory System
Study the given figure of blood:
- Which type of them covers 55% part of blood?
- Which of them is concerned with leukemia?
- What is the abnormality called, when number of A decreases below normal level?
- Which of them forms fibre like structure during its function?
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Solution
From the given diagram of blood, we can label A, B, C, and D as follows:
- A: Red Blood Cells
- B: White Blood Cells
- C: Platelets
- D: Plasma
Now, we can answer the questions as follows:
- Plasma covers 55% part of the blood. It is a hay-colored fluid that constitutes around 55% of the total composition of the blood. The blood corpuscles are free to float on the plasma.
- White Blood Cells is concerned with leukemia. Leukemia is a diseased condition of the human body in which the number of White Blood Cells increases above normal levels.
- When the number of Red Blood Cells (A) decreases below the normal level, it results in anaemia.
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