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प्रश्न
Explain the difference.
Arteries and veins.
उत्तर
|
Arteries |
Veins |
| 1. Carries blood towards organs and away from the heart. | Carries blood towards the heart and away from organs. |
| 2. Carries fully oxygenated blood | Carries deoxygenated and CO2 enriched blood. |
| 3. Blood flows with high pressure and jerks. | Blood flows with low pressure and smoothly. |
| 4. Have no valves | Have valves to prevent backflow of blood. |
| 5. Walls are elastic. | Walls are non-elastic. |
| 6. Are Deeply placed. | Are superficial. |
| 7. Branched and decreases in size. | Unites and increases in size |
| 8. Can constrict and dilate | Cannot constrict. |
| 9. Have thick and muscular walls | Have thin and less muscular walls. |
| 10. Smallest artery is called arteriole | The smallest vein is called Venules. |
संबंधित प्रश्न
What is meant by human circulatory system? Name the organs of the circulatory system in humans.
Name the following:
Any one vein which starts from an organ and ends in another organ besides the heart
Give any three differences between an artery and a vein
The oxygen-rich blood from the lungs comes into the ______ of the heart.
Fill in the blank:
The blood vessels which carry blood from the heart to different parts of the body are called ______.
How many litres of blood does an adult human body have?
Given below is the simplified pathway of the circulatory system:
(i) Name the blood vessels marked 1 to 8.
(ii) Name the chamber of the heart which:
(a) Receives blood from ‘1’.
(b) Pumps blood into blood vessel ‘8’.
(iii) Mention two structural differences between blood vessels ‘7’ and ‘2’.
Given below is a schematic representation of the circulatory system in man. Study the same and answer the questions that follow:
(i) Label the parts 1 to 4 indicated in the diagram.
(ii) Give one difference between parts 1 and 2 based on:
(a) their structure
(b) the nature of blood flowing through them.
(iii) What is the specific name of the type of blood circulation that takes place between the heart and the lungs?
(iv) Name the valve found at the beginning of the part labeled 3.
Complete the following sentence with appropriate word:
The chamber of heart which pumps blood into aorta is __________.
Which of the following is TRUE regarding leucocytosis?
