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प्रश्न
Define the Veins.
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उत्तर
Veins are the blood vessels that carry deoxygenated (impure) blood from the body cells to the heart.
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संबंधित प्रश्न
Given below is a diagram of a human blood smear. Study the diagram and answer the questions that follow:
- Name the components numbered ‘1’ to ‘4’.
- Mention two structural differences between the parts ‘1’ and ‘2’.
- Name the soluble protein found in part ‘4’ which forms insoluble threads during clotting of blood.
- What is the average lifespan of the component numbered ‘1’ ?
- Component numbered ‘1’ do not have certain organelles but are very efficient in their function. Explain.
What is meant by human circulatory system?
Differentiate between members of the following pairs with reference to the aspect asked
within bracket:
Erythrocytes and leucocytes (function)
Fill in the blanks with suitable words given below:
The two lower chambers of the heart are called ______.
True or false:
The four blood groups in human beings are A, B, AB and AO
Match the statements in Column A with those in Column B
| Column A | Column B | ||
| 1 | Heart | a | Movement of materials |
| 2 | Food and oxygen | b | Channels for transport in man |
| 3 | Carrier of oxygen | c | A living pump |
| 4 | Circulation | d | Materials needed by every living being |
| 5 | Arteries and veins | e | Red blood cells |
Name the main parts of the circulatory system.
Complete the following sentence with appropriate word:
The foundations of physiology were laid by the physician __________.
Complete the following sentence with appropriate word:
Beside food, oxygen and waste materials, circulatory system transports ________ to various parts of the body.
State the Location:
Tonsils
