Buccal Cavity

Q.

Give the difference between milk teeth and permanent teeth.

Q. (b) What is meant by dental caries ? How are they caused ?

Q. Where is digested food absorbed into blood in the human body?

Q.

The following picture shows the different types of teeth present in your mouth. From the given options, select the option which matches with their name and function.

1. A - Incisor-Cutting and biting
   B - Canines- Chewing and grinding
   C - Premolars-Chewing and grinding
   D - Molars-Piercing and tearing

2. A - Incisor-Chewing and grinding
   B - Canines-Piercing and tearing
   C - Premolars-Cutting and biting
   D - Molars-Chewing and grinding

3. A - Incisor-Cutting and biting
   B - Canines-Piercing and tearing
   C - Premolars-Chewing and grinding
   D - Molars-Chewing and grinding

4. A - Incisor-Chewing and grinding
   B - Canines-Chewing and grinding
   C - Premolars-Piercing and tearing
   D - Molars-Cutting and biting

Q. Explain the role of mouth in the digestion of food.

Q.

Statement 1: The body breaks down complex substances in food into smaller components in the digestive system.

Statement 2: Breaking down of food into simpler substances helps in easy and efficient absorption of nutrients.

Which of the following options describes the correct relationship between the two statements?

1. Statement 1 is correct but statement 2 is incorrect.

2. Both statements are incorrect.

3. Both statements are correct but statement 2 is not the correct explanation for statement 1.

4. Both statements are correct and statement 2 is the correct explanation for statement 1.

Q. Which of the following is the correct sequence of parts as they occur in the human alimentary canal ?

1. Mouth→ Stomach→ Small intestine→ Oesophagus→Large intestine
2. Mouth →Oesophagus →Stomach→ Small intestine→ Large intestine
3. Mouth→ Oesophagus→ Stomach→ Large intestine →Small intestine
4. Mouth →Stomach →Oesophagus→ Small intestine →Large intestine

Q. Explain the role of mouth in the digestion of food.

Q. What happen to the food in mouth?

Q. Which of the following is not an accessory gland that aids the digestion process?​

1. Oesophagus​
2. Gallbladder​
3. Pancreas​
4. Liver​