Digestive System Functions and Processes

The video explains the digestive process, starting with food passing through the esophagus into the stomach, where it is mixed and turned into chyme. The chyme then moves into the small intestine, where enzymes and bile further break it down into molecules. These molecules are absorbed into the bloodstream to nourish the body, while unused parts are passed into the large intestine.

What is the primary function of the sphincter muscle in the esophagus?

• To produce digestive enzymes

• To absorb nutrients

• To prevent backflow of stomach contents

• To mix food with saliva

What happens to food in the stomach?

• It is expelled from the body

• It is stored for later use

• It is turned into chyme

• It is absorbed into the bloodstream

What is chyme?

• A nutrient absorbed in the small intestine

• A type of digestive enzyme

• A toothpaste-like substance formed in the stomach

• A muscular valve

Which organ produces bile?

• Pancreas

• Liver

• Esophagus

• Stomach

What role do enzymes play in the small intestine?

• They transport food to the stomach

• They prevent backflow of food

• They break down food into molecules

• They store food

Which part of the digestive system is described as a 'six meter food processor'?

• Small intestine

• Esophagus

• Large intestine

• Stomach

How are nutrients from digested food transported to the cells?

• Through the esophagus

• Via the bloodstream

• By the sphincter muscle

• Through the large intestine

What happens to food that the body cannot use?

• It passes into the large intestine

• It is stored in the liver

• It is absorbed into the bloodstream

• It is converted into chyme