Which body system absorbs nutrients through the body?

Which body system absorbs nutrients through the body?

• A. Endocrine
• B. Exocrine
• C. Digestive
• D. Respiratory

Answer: (C)

Nutrient absorption is a function of the digestive system. After food is broken down, the small intestine’s lining allows nutrients to pass into the bloodstream (and lymph) so the body can use them. The lining is lined with villi and microvilli, which greatly increase surface area to efficiently absorb carbohydrates, proteins, fats, vitamins, minerals, and water. The large intestine mainly reclaims water and electrolytes. The endocrine and exocrine roles involve hormone signaling and enzyme secretion, not the actual uptake of nutrients, while the respiratory system handles gas exchange. So, the digestive system is the one that absorbs nutrients.

Nutrient absorption is a function of the digestive system. After food is broken down, the small intestine’s lining allows nutrients to pass into the bloodstream (and lymph) so the body can use them. The lining is lined with villi and microvilli, which greatly increase surface area to efficiently absorb carbohydrates, proteins, fats, vitamins, minerals, and water. The large intestine mainly reclaims water and electrolytes. The endocrine and exocrine roles involve hormone signaling and enzyme secretion, not the actual uptake of nutrients, while the respiratory system handles gas exchange. So, the digestive system is the one that absorbs nutrients.