Task 6 Finish the sentences.
1. The gastrointestinal tract begins with…
2. The …form the walls of the oval - shaped mouth cavity.
3. … are the irregular ridges in the …
4. There are … teeth.
5. A tooth consists of a …, a …, an …
6. … surrounds the root and holds the tooth in place.
7. The salivary glands produce a fluid called …
Task 7 Insert the missing words given below.
1. The soft palate separates the mouth from …
2. It moves food around during …
3. They protect the body from …of microorganisms.
4. Saliva contains important digestive …
5. Saliva is released from the … glands.
(mastication and deglutition, the invasion, the parotid, the pharynx, enzymes)
Достарыңызбен бөлісу: 
