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प्रश्न
Differentiate between an artery and a vein with reference to lumen and thickness of wall.
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उत्तर
| Artery | Vein | |
| 1. | The lumen is narrow. | The lumen is wide. |
| 2. | It is thick-walled. | It is thin-walled. |
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संबंधित प्रश्न
Arteries and veins are joined by a network of ______.
What stops blood from flowing backwards through the heart?
A blood vessel which carries blood back to the heart is ______.
Put a tick mark (✓) against the correct alternative in the following statement:
Function of WBCs is to
- Transport oxygen
- Help in clotting of blood
- Provide immunity
- Provide storage of food.
Fill in the blank with suitable word given below:
The blood plasma contains a dissolved substance called ______________.
Describe the functions of Blood.
Differentiate between arteries and veins.
Study the following diagram carefully:
(a) With which figure in the chapter can you roughly compare this diagram?
(b) Write any two things shown in it as extra from those in the figure named above.
The diagram below represents a certain category of blood vessels showing the role of a special structure in their walls :
(i) Name the kind of blood vessels shown.
(ii) What is the structure shown inside the blood vessels?
(iii) What is the role of these structures?
(iv) Are these structures present in any other kind of blood vessel? If so, name it.
(v) Towards which side of the figure (Top or Bottom) is the heart located?
Given alongside are diagrams of a certain category of blood vessels showing the role of a special structure in their walls. Study the figure and answer the questions that follow.
 |
- Name the kind of blood vessels shown in the figure. What are its branches termed as?
- Name the structure shown inside the blood vessels. Write its important role.
- What kind of blood flows through these blood vessels normally? Name the blood vessel which carries blood from the heart to the lungs.
- Name a similar kind of blood vessel which is related to the liver and kidney.
- Draw a neat and labelled diagram of the transverse section of the blood vessel shown above showing the three layers of its wall and lumen.
