THE DIGESTIVE SYSTEM

By: Garrett Gruttadauria, Ezra Gordon, and Samuel Bieker

Functions

The Digestive System has 4 steps; Ingestion-The act of eating. Digestion-The mechanical and chemical

breakdown of food into small particles and molecules that your body can absorb.

Absorption-Nutrients and water are taken in by cells.

Elimination-The removal of undigested food and other wastes.

Major Parts/Organs

Tongue Salivary Glands Esophagus Peristalsis Liver Gallbladder Stomach Pancreas

Large/Small Intestine

Rectum

Interactions With 2 Other Systems

IMMUNE SYSTEM CIRCULATORY SYSTEM

The Digestive System works with the Immune System by digesting medicinal foods and drinks to aid the Immune System in fighting off diseases and infections.

The Digestive System works with the Circulatory System by absorbing the nutrients from food and delivers it throughout the body in blood cells.

Role in Maintaining Homeostasis

The nutrients that the Digestive System makes is necessary for other body systems to maintain homeostasis. The blood in the Circulatory System absorbs the products of digestion. The blood carries the nutrients to all the other systems providing them with materials that contain energy.

Health/Diseases

To maintain a healthy body you have to eat all six nutrients which include proteins, carbohydrates, fats, vitamins, minerals, and water. Another way to stay healthy is to eat a balanced diet.

FAQ’s

Q: How long is the small intestine?A: The small intestine is 22 ft 8 in long. Q: What role does bacteria have in digestion?A: Bacteria begin to colonize in the stomach after birth,

they play a key role in training the immune system to recognize other types of bacteria.

Q: How much food can your stomach hold at once?A: A full adult stomach can hold up to 2 liters of food and

drinks at once Q: Is the large intestine bigger than the small

intestine? A: NO, the small intestine is longer than the large

intestine, but the large intestine is wider.