Digestive System
The digestive system is a group of organs working together to convert food into energy and basic nutrients to feed the entire body. Food passes through a long tube inside the body known as the alimentary canal or the gastrointestinal tract (GI tract).
Organs of the Digestive System
Processes in Digestion
The digestive system performs several important processes:
- Ingestion: Intake of food through the mouth
- Digestion: Breakdown of food into smaller molecules
- Absorption: Passage of nutrients into the bloodstream
- Elimination: Removal of undigested waste as feces
Digestive Enzymes
Enzymes play a crucial role in digestion. Here are some important digestive enzymes and their functions:
- Amylase: Breaks down carbohydrates into simple sugars in the mouth and small intestine
- Pepsin: Digests proteins in the stomach
- Lipase: Breaks down fats into fatty acids and glycerol in the small intestine
- Trypsin: Digests proteins in the small intestine
Common Digestive Disorders
Some common digestive disorders include:
- Acid reflux
- Constipation
- Diarrhea
- Ulcers
- IBS (Irritable Bowel Syndrome)
Study Tips
When studying the digestive system, it's important to:
- Understand the functions of each organ
- Memorize the processes of digestion
- Learn the role of enzymes in digestion
- Familiarize yourself with common digestive disorders
