Videos: The process of digestion

Videos: The process of digestion

Discover the process of digestion.

Energy

Explore the needs and requirements for energy in the diet.

Nutrients

Explore the needs and requirements for nutrients in the diet.

Dietary fibre and water

Explore the needs for dietary fibre and water.

Alcohol

Explore the effect of alcohol in the diet.

Nutritional needs

Explore different nutritional needs.

The digestion process

Explore the digestion of food.

Ingestion

Summary points:

The physical act of digestion begins here.

Teeth cut and grind the food.

Saliva moistens the food.

The enzyme amylase breaks down starch to maltose.

Food passes from the mouth to the stomach in a ball shape - a bolus.

The gullet is also known as the oesophagus.

Ingestion

In this short video clip you will see what happens to food in the mouth.

Digestion

In this short video clip you will see how the stomach works.

Absorption

In this short video clip you will see how the body absorbs nutrients from food.

Elimination

In this short video clip you will see inside the colon.