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HIGH SCHOOL

Biology

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Anatomy and Physiology

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Digestive System

Small Intestine Nutrient Uptake

Description

Small intestine nutrient uptake moves digested nutrients from the intestinal lumen into the body. After digestion, carbohydrates, proteins, and fats are broken into simpler forms. These macronutrients, along with vitamins, minerals, and water, are then ready for absorption into the bloodstream.

E...

Transcript

During digestion in the small intestine, macromolecules— carbohydrates, proteins, and fats — are broken down into their simplest forms.

These simplified macronutrients and other essential substances like vitamins, minerals, and water, are prepared for absorption into the blood.

The mucosa of the small intestinal walls is lined with...

Tags

Nutrient AbsorptionEnterocyte FunctionMicrovilli StructureTight JunctionsApical MembraneBasolateral MembranePassive TransportActive TransportBlood CapillariesIntestinal Lumen

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