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Question
Name the type of T-lymphocyte which secretes perforins.
Solution
Killer-T cells secrete perforins.
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RELATED QUESTIONS
Describe agranulocytes with the help of diagrams.
The extracellular fluid which always flows from body tissues to the heart is called ______________.
What is lymph? State two major functions of lymph.
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?
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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:
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Multiple Choice Questions
The chief function of lymph nodes in mammals is to:
Lymph glands or lymph nodes help to ______.
Select the correct sequence of flow of lymph through the following organ/part of the body, from the list given below:
- Intercellular spaces of body tissues.
- Thoracic and right lymphatic ducts
- Veins
- Lymphatic vessels
- Heart
