Advertisements
Advertisements
Question
Answer in detail.
Name the four types of teeth and their functions
Advertisements
Solution
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
RELATED QUESTIONS
Which part of the digestive canal is involved in:
Killing of bacteria ______.
Put a tick (✓) against the most appropriate alternative in the following statement.
The teeth which help in tearing the food are the:
Write True or False in the following statement
Molars help in cutting and tearing food.
Differentiate between
Digestion and Absorption
Write short answers
What is peristalsis?
Define with examples: Heterotrophs
Name different steps involved in animal nutrition. Explain.
Use your brain power!
Why do we sometimes choke suddenly while eating?
Observe the diagram of Human digestive system.
Match the labeling referred in column I and correlate with the function in column II.
| Column I | Column II | |
| i. | a. | The length of this depends on food the organism eats. |
| ii. | b. | Initial phase of starch digestion |
| iii. | c. | Increase the efficiency of lipase enzyme action |
| iv. | d. | This is the site of the complete digestion of carbohydrates, proteins and fats. |
How do fats get digested in human beings?
