DIGESTION OF CARBOHYDRATES IN MOUTH

Digestive process begins in ....

• stomach

• nose

• mouth

• intestine

What does the presence of food in the mouth stimulate?

• It stimulates the hydrolysis of starch

• its stimulates the secretion of saliva

• its stimulates the salivary amylase

• its stimulates the contraction and relaxation of muscles.

What is the function of salivary amylase?

(a)  

Bolus is a food that's been chewed and mixed with saliva.

Choose whether the statement is true or false

• true

• false

Peristalsis is the rhythmic ________ and _______ of muscles of the esophagus wall.

• contract,stay

• pulse , contract

• freeze,relax

• contract , relax