B. SHORT ANSWER TYPE QUESTIONS
1. What is plaque ?
2. Give two suggestions to keep your teeth and gums healthy.
3. How does our tongue help in food digestion ?
4 What are milk teeth and permanent teeth ?
5. What role do villi perform in the small intestine ?
Answers
Answer=1
Plaque is a soft, sticky film that builds up on your teeth and contains millions of bacteria. The bacteria in plaque cause tooth decay and gum disease if they are not removed regularly through brushing and flossing.
Answer=2
Good oral hygiene like brushing and flossing at least twice every day can help prevent gum infections, cavities, and tooth loss. Having your teeth cleaned and checked by a dentist or dental hygienist at least once a year also is important, the ADA says.
Answer=3
Your tongue helps out, pushing the food around while you chew with your teeth. When you're ready to swallow, the tongue pushes a tiny bit of mushed-up food called a bolus.
Answer=4
Milk teeth are those teeth which we have from our child hood but after a time it broke in 6-7 year of age and after that teeth grow that is permanent teeth.
Answer=5
The villi of the small intestine project into the intestinal cavity, greatly increasing the surface area for food absorption and adding digestive secretions.