Understanding the Digestive System: Organs and Functions

The small intestine is the primary site for the digestion and absorption of nutrients from food.

The esophagus serves as a passageway for food to travel from the mouth to the stomach.

The liver produces bile, which is stored in the gallbladder and released into the small intestine to aid in fat digestion.

The pancreas produces insulin, a hormone that regulates blood sugar levels, and also secretes enzymes that aid in the digestion of carbohydrates, proteins, and fats.

The large intestine absorbs water and electrolytes from undigested food, forming solid waste.

The stomach secretes hydrochloric acid and enzymes that break down carbohydrates, proteins, and fats, initiating the digestive process.

The gallbladder stores and releases bile, produced by the liver, into the small intestine when needed for fat digestion.

The epiglottis is a flap of cartilage that prevents food and liquids from entering the windpipe during swallowing.

The pancreas secretes enzymes, including proteases, that break down proteins into smaller peptides and amino acids.

The small intestine is responsible for the absorption of nutrients from digested food into the bloodstream.

The stomach secretes hydrochloric acid, which helps break down food and kills harmful bacteria.

The rectum stores solid waste (stool) until it can be eliminated through defecation.

The pancreas secretes enzymes, including amylases, that break down carbohydrates into simple sugars.

The anus is the opening through which solid waste (stool) is expelled from the body.

The pancreas secretes enzymes, including lipases, that break down fats into fatty acids and glycerol.