Exploring the Anatomy of the Small Intestine: Circular Folds and Nutrient Absorption

The video tutorial explores the small intestine, highlighting its length and the presence of circular folds that increase surface area for nutrient absorption. It also explains how the spiral movement of Kime enhances contact time, further aiding absorption.

What is the primary function of the small intestine?

• To store food

• To digest proteins

• To produce enzymes

• To absorb nutrients

What are circular folds in the small intestine?

• Structures that increase surface area

• Nutrient storage areas

• Muscle layers

• Digestive enzymes

How do circular folds benefit nutrient absorption?

• By producing more digestive enzymes

• By increasing the speed of digestion

• By storing more nutrients

• By increasing surface area for absorption

What is the effect of circular folds on the movement of food?

• They slow down the movement

• They make the food spiral through

• They speed up the movement

• They stop the movement

What is the term used for the food as it moves through the small intestine?

• Feces

• Saliva

• Chyme

• Bolus