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प्रश्न
Explain the following:
Why is the closed circulatory system more efficient than the open system?
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उत्तर
The closed circulatory system is more efficient than the open system because in closed system the blood flows inside arteries or veins all the time which stops the mixing of blood with other bodily fluids and helps the transport of the blood around the body.
संबंधित प्रश्न
State the functions of blood in our body.
pH of oxygenated blood is ______.
Fill in the blank:
The blood vessels which carry blood from the heart to different parts of the body are called ______.
Name the main parts of the circulatory system.
Describe, in brief, the circulatory system in human beings.
Describe how the exchange of oxygen and carbon dioxide gases takes place in the lungs.
The process of keeping the blood flowing continuously throughout the body.
All the waste products of the body are excreted through the circulatory system.
Identify the INCORRECT match
Given diagram is a schematic representation of the circulatory system in humans. Study the same and answer the questions that follow:
 |
- Label the parts 1 and 4 indicated in the diagram.
- Which of the above mentioned number is the thickest artery? Also write its name.
- Mention the number and chamber of the heart which has the thickest muscular wall.
- Which of the above numbers/structures has the maximum number of blood capillaries?
- Draw neat and labelled diagrams of the transverse section of vena cava and the part numbered as 3. Make sure to show the structural differences between these two in the diagram.
