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प्रश्न
Name the types of teeth seen in humans.
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उत्तर
Human teeth are of four kinds:
- Incisors are the four front teeth at the middle of each jaw. They are chisel-shaped for biting and cutting.
- Canines are one on either side of the incisors in each jaw. They are pointed for tearing the food.
- Premolars are two on each side of canines in each jaw. They help in crushing and grinding the food.
- Molars are the last three teeth on each side in each jaw. They have a broad uneven surface for finer crushing and grinding of ingested food.
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संबंधित प्रश्न
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Read the following passage carefully and answer the questions that follow it.
| Bile juice is stored in a sac called, gall bladder, located near its organ of secretion, liver. The gall bladder releases the bile juice into the small intestine whenever food reaches there. Though bile juice is devoid of any digestive enzymes, it is required for the digestion of fats. The fats cannot be digested easily because they are insoluble in water and are present as large globules. Bile juice breaks down big fat droplets into smaller droplets. These are then easily digested by the enzymes released from the pancreas. |
- Which organ secretes the bile juice?
- Why is digestion of fats difficult as compared to that of other nutrients?
- How does bile juice help in the digestion of fat?
- Where is the digestion of fat completed?
- Does bile juice digest fat completely?
