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प्रश्न
Use your brain power!
How is the air that we inhale purified in our body?
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उत्तर
There are tiny, fine hair-like outgrowths called cilia inside the nose from where the air passes inside. Larger dust particles get caught in these hairs. The air going inside the trachea thus gets filtered. There is also a layer of a sticky substance called mucous. The dust and smoke particles stick to the mucous. Thus, the air that we inhale gets purified before it reaches the lungs.
संबंधित प्रश्न
The blood from the heart is transported to all parts of the body by the ______.
Match the statements in Column A with those in Column B:
What are the average values of blood pressure in a normal adult human?
A blood vessel which has small lumen and thick wall is ______.
Differentiate between members of the following pairs with reference to the aspect asked within bracket:
Artery and vein (direction of blood flow)
Differentiate between members of the following pairs with reference to the aspect asked within bracket:
artery and vein (type of blood primarily flowing through)
Differentiate between the following pair of terms: Vena Cava and Aorta
Describe, in brief, the circulatory system in human beings.
State the Location: Bicuspid value
Name the following:
Contraction phase of heart.
