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Digestive System Processes

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Questions and Answers

What is the primary function of mechanical digestion?

To break down food into smaller pieces and change its chemical composition

To add chemicals to the food to make it more easily absorbed

To absorb nutrients into the bloodstream

To break down food physically into smaller pieces (correct)

What is the main role of the esophagus in the digestive system?

To act as a pathway for food and air (correct)

To break down food chemically

To absorb nutrients into the bloodstream

To produce digestive enzymes

What is assimilation in the context of the digestive system?

The process of breaking down food into smaller pieces

The process of absorbing nutrients into the bloodstream

The process of carrying food molecules to body cells (correct)

The process of swallowing and absorbing food

What is the role of saliva in the mouth?

To start the chemical breakdown of carbohydrates Signup and view all the answers

What is chemical digestion?

The breakdown of food using chemicals such as enzymes and acids Signup and view all the answers

What is the primary function of the pharynx in the digestive system?

To act as a pathway for food and air Signup and view all the answers

What is the primary function of the stomach in the digestive system?

To physically squeeze, churn, and mix food with strong digestive juices Signup and view all the answers

What is the name of the wavelike movement of the smooth muscles of the esophagus and stomach that push food inside the digestive tract?

Peristalsis Signup and view all the answers

Which part of the small intestine is where most of the chemical digestion takes place?

Duodenum Signup and view all the answers

What is the main function of the large intestine in the digestive system?

To absorb water and electrolytes, and form and eliminate feces Signup and view all the answers

Which organ produces a juice that neutralizes stomach acid and contains digestive enzymes?

Pancreas Signup and view all the answers

What is the final part of the large intestine where feces is stored before elimination?

Rectum Signup and view all the answers