Question

The functions of the oral cavity include all of the following except

Answer 1

The question is incomplete.

The complete question is:

The functions of the oral cavity include all of the following, except:

A) Digestion of cholesterol fats.

B) Mechanical processing of food.

C) Lubrication.

D) Digestion of carbohydrates.

E) Analysis of material before swallowing.

Answer: A) Digestion of cholesterol fats.

Step-by-step explanation:

Oral cavity consist of teeth, tongue, and jaw and facial muscles which coordinate in food digestion.

The digestion of cholesterol fats starts in the oral cavity with the help of lingual lipases. lingual lipases is an enzyme secreted by glands in the tongue that initiates the digestion of triglycerides.

Digestion furthur continues in the stomach with many other lingual and gastric enzymes.

Hence the correct option A.

Answer 2

Options for the question have not been provided. They are as follows:

A) Digestion of cholesterol fats.

B) Mechanical processing of food.

C) Lubrication.

D) Digestion of carbohydrates.

E) Analysis of material before swallowing.

Answer:

A) Digestion of cholesterol fats.

Step-by-step explanation:

Oral cavity performs many functions during digestion. It secretes saliva which lubricates the food. Teeth crush the food particles and thus help in mechanical processing. Saliva also has salivary amylase enzyme which starts digesting carbohydrates.

However, digestion of fats specially cholesterol, does not begin properly till the food reaches small intestine. In small intestine bile juice emulsifies fat molecules and lipase digests it.