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प्रश्न
A liquid X of colour Y circulates in the human body only in one direction: from body tissues to the heart. Among other things, liquid X contains germs from cells and dead cells. The liquid X is cleaned of germs and dead cells by a special type of white blood cells called Z. This cleaned liquid is then put into the blood circulatory system in subclavian veins.
- What is (i) liquid X, and (ii) colour Y?
- What is Z?
- The liquid X is somewhat similar to a component of blood. Name this component.
- Why is liquid X not red?
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उत्तर
- Lymph (X) is a light yellow colour (Y) liquid that circulates in the human body. It circulates from the body tissues to the heart. Hence, (i) the liquid X is lymph. (ii) The colour Y is light yellow.
- The liquid X (lymph) is cleaned of germs and dead cells by a special type of white blood cells called lymphocytes (Z). Lymphocyte helps in fighting infections and diseases. Thus, Z represents lymphocytes.
- The liquid X, i.e. lymph, is somewhat similar to plasma.
- The liquid X, i.e. lymph, is not red because it does not contain red blood cells that have a red colour pigment called haemoglobin.
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संबंधित प्रश्न
Name the type of T-lymphocyte which secretes perforins.
The extracellular fluid which always flows from body tissues to the heart is called ______________.
Write a short note on Tissue Fluid.
Complete the following sentence with appropriate word:
The fluid in the space between the tissue cell is called__________.
State the Function: Lymph
Multiple Choice Questions
The chief function of lymph nodes in mammals is to:
Lymph is present in the
For which of the following reason it is much easier for a small animal to run uphill than for a large animal?
Select the INCORRECT statement.
Name a circulatory fluid in the human body other than blood.
Lymph glands or lymph nodes help to ______.
Match the terms given under Column ‘A’ with their functions given under Column ‘B’ and select the answer from the options given below:
| Column I | Column II |
| A. Lymphatic System | i. Carries oxygenated blood |
| B. Pulmonary vein | ii. Immune Response |
| C. Thrombocytes | iii. To drain back the tissue fluid to the circulatory system |
| D. Lymphocytes | iv. Coagulation of blood |
How is lymph an important fluid involved in transportation? If lymphatic vessels get blocked, how would it affect the human body? Elaborate.
What is the other name of 'tissue fluid'? Write its two functions.
Choose the odd one out from the following terms and name the category to which the others belong:
Name the two main lymphatic organs in humans.
Name the following:
A special lymphatic node on the sides of the neck.
