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Question
Give reason:
Lymphatic vessels are milky in appearance.
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Solution
- Lymphatic system consists of lymph, lymphatic vessels, some organs and tissues.
- The word ‘lymph’ means ‘clear water’ and it is a fluid connective tissue with almost similar composition to the blood except RBCs, platelets and some proteins.
- Fluid from intercellular spaces of the body tissue enters into the lymphatic vessels, from here it is discharged into the blood vessels (veins) through the thoracic duct and the right lymphatic duct.
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RELATED QUESTIONS
| 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?
Give the functions of lymph.
The diagram below shows part of the capillary bed in an organ of the human body. Some of the blood arriving at the capillaries at points labeled A, moves out into the spaces between the tissue cells. Study the diagram and answer the questions that follow:
Some of the liquid surrounding the cells does not pass directly back into the blood but eventually reaches it by another route through vessel X. name the fluid present in vessel X.
The diagram below shows part of the capillary bed in an organ of the human body. Some of the blood arriving at the capillaries at points labeled A, moves out into the spaces between the tissue cells. Study the diagram and answer the questions that follow:
State two important functions performed in our body by the fluid present in vessel X.
Describe the role of lymph
Write a short note on Tissue Fluid.
Differentiate between:
Blood and Lymph.
Multiple Choice Questions
The chief function of lymph nodes in mammals is to:
Lymph glands or lymph nodes help to ______.
Name the following:
A special lymphatic node on the sides of the neck.
