The Digestive and Circulatory Systems

Front

What is the primary function of the digestive system?

Back

To break down food substances into small soluble molecules that can be absorbed into the bloodstream.

Front

What are the two main types of digestion in the digestive system?

Back

Physical (mechanical) digestion and chemical digestion.

Front

What role do enzymes play in digestion?

Back

Enzymes are proteins that speed up the chemical breakdown of food.

Front

What are the four main processes of the human digestive system?

Back

1. Ingestion 2. Digestion 3. Absorption 4. Egesting.

Front

What is the function of the oral cavity in digestion?

Back

It is the point of entry for food, where both physical and chemical digestion begins.

Front

What is mastication?

Back

The process of chewing food into smaller particles.

Front

What is the role of saliva in digestion?

Back

Saliva contains enzymes that break down starches, dissolves food particles, and lubricates food for swallowing.

Front

What are the four types of teeth and their functions?

Back

1. Incisors - cutting and biting. 2. Canines - tearing. 3. Premolars - grinding. 4. Molars - crushing and grinding.

Front

What is the dental formula for adult humans?

Back

(2123/2123) × 2 = 32 teeth.

Front

What is plaque?

Back

A thin film formed by bacteria, food, and saliva on teeth.