Advertisements
Advertisements
प्रश्न
Answer in detail.
Name the four types of teeth and their functions
Advertisements
उत्तर
The four types of teeth are:
Incisors: These are situated at the front and are flat and straight with sharp edges. Which are used for biting and cutting the food.
Canines: These are situated one on either side of the incisors in each jaw. There are two canines in each jaw. These are sharp and pointed and are used for holding and tearing the food.
Premolars: There are 4 premolars in each jaw, situated next to the canines. Each premolar has one or two roots and two cusps. These are used for crushing and grinding the food.
Molars: These are 6 molars in each jaw. The molars have more than one root. These are used for crushing and grinding the food. The last molar of each side in each jaw is also called wisdom tooth because it appears last generally at the age of 17-20 years. The ingested food is first broken down in the mouth when we chew it with our teeth. This process is called mastication or mechanical digestion. It prepares the food for chemical digestion that is, digestion by the action of enzymes.
APPEARS IN
संबंधित प्रश्न
Explain the process of digestion of food in mouth, stomach and small intestine in human body.
How is the liver an important organ in our body?
Define the following term:
Assimilation
Complete the following table by filling in the blanks 1 to 8.
|
Organ |
Enzyme |
Food acted upon |
Find product |
|
1 |
Pepsin |
2 |
3 |
| Mouth | 4 | 5 | Disaccharide |
|
6 |
7 |
Maltose |
8 |
Name the types of teeth seen in humans.
Fill in the blank.
Steapsin is also called _________
Complete the following enzymatic reaction.
Maltose \[\ce{->[maltase]}\] ___________
Complete the following enzymatic reaction.
Sucrose \[\ce{->[sucrase]}\] ___________+ __________
The question has four options. Choose the correct answer:
Parotid salivary glands occur
A gland not associated with the alimentary canal is ____________.
