Interactive Human Body Infographic: Nutrient Absorption and Body Systems

The digestive system breaks down food into smaller molecules. Carbohydrates become glucose, proteins become amino acids, and fats become fatty acids and glycerol. The intestines absorb these nutrients.

The liver processes nutrients absorbed from the digestive system. It converts glucose into glycogen for storage, produces bile for fat digestion, and detoxifies harmful substances.

The circulatory system distributes absorbed nutrients, oxygen, and hormones to cells throughout the body. Glucose and amino acids are transported to tissues for energy production and repair.

Muscles use proteins for growth and repair. Glucose and fatty acids provide the energy needed for muscle contractions during physical activity.

The lungs exchange oxygen and carbon dioxide, supplying oxygen to the blood. This oxygen is essential for cellular metabolism, including the breakdown of nutrients for energy.

The large intestine absorbs water and essential minerals from undigested food. It also houses beneficial bacteria that aid in digestion and produce vitamins like vitamin K.