Human Digestive System by Molly Stewart

mstewart1218_ — 2023-11-17 19:10:10 UTC

Mouth

mstewart1218_ — 2023-11-17 19:10:10 UTC

fist the food is ingested, then it is broken down by the Silva using an enzyme called amylase this enzyme breaks down starches using chemical digestion then the teeth break down the food further using mechanical digestion and make the food into a ball of paste called a bolus

Salivary glands

mstewart1218_ — 2023-11-17 19:10:10 UTC

The Salivary glands make saliva. Saliva helps moisten food so we can swallow it more easily. It also has an enzyme called amylase that makes it easier for the stomach to break down complex carbohydrates.

Epiglottis

mstewart1218_ — 2023-11-17 19:10:10 UTC

Your epiglottis protects your ability to breathe by protecting your voice box. It keeps food and liquid from getting into your trachea and lungs. this helps to prevent choking.

Esophagus

mstewart1218_ — 2023-11-17 19:10:10 UTC

A tubular long organ that connects the pharynx to the stomach. The esophagus is lined with mucus to help food pass into the stomach. Peristalsis is a series of wavelike motions in your muscles that moves swallowed balls of food into the stomach. Stomach acid can flow back through the esophagus causing your chest to burn which is called heartburn. No digestion occurs in the esophagus.

Stomach

mstewart1218_ — 2023-11-17 19:10:10 UTC

The stomach stores and breaks down food. It uses Hydrochloric acid and enzymes to break down food. The enzyme pepsin breaks down proteins that enter the stomach from food. Chyme is a pulpy acidic fluid that passes through the stomach into the small intestine containing gastric acids and partly digested foods. The stomach is both mechanical and chemical digestion because it churns food up and the acids in your stomach break food down.

Pancreas

mstewart1218_ — 2023-11-17 19:10:10 UTC

The pancreas are able to produce enzymes that help to digest food. The enzymes break down carbs, fats, and proteins. The pancreas also produces insulin which are hormones that help to regulate sugar levels. The pancreas uses chemical digestion.

The pancreas has a passage known as the pancreatic duct. The pancreatic duct connects to the common bile duct and creates the ampulla of Vater near the small intestine.

Gallbladder

mstewart1218_ — 2023-11-17 19:10:10 UTC

The gallbladder stores and releases bile produced by the liver. The gallbladder emulsifies bile into the small intestine to help digest fat. The gallbladder uses chemical digestion, storing the bile and then breaking down fats with the bile.

Liver

mstewart1218_ — 2023-11-17 19:10:10 UTC

The liver creates bile which is stored in the gallbladder. Bile is important for digesting fats, eliminating certain toxins, and eliminating worn out red blood cells.

The liver is able to break down bacteria and bacteria. This is known as detoxification.

Small Intestine

mstewart1218_ — 2023-11-17 19:10:10 UTC

The small intestines break down food and absorb nutrients for the body. Most digestion of lipids using enzymes happens in the small intestine. The small intestine uses enzymes to break down food in chyme which means it is chemical digestion. Villi are finger like projections in the small intestine that absorb the nutrients from chyme.

Large Intestine

mstewart1218_ — 2023-11-17 19:10:10 UTC

The large intestine processes any indigestible material after most of the nutrients and vitamins are absorbed in the small intestines. The large intestines also absorb any leftover water then leaves feces the waste product which is removed through egestion. The large intestine uses mechanical digestion when it breaks down the food.

Digestive System Video

mstewart1218_ — 2023-11-17 19:10:10 UTC

Appendix

mstewart1218_ — 2023-11-17 19:10:10 UTC

The appendix is a vestigial organ meaning it has no function anymore. It may have been important for people at one time.

How Your Digestive System Works

mstewart1218_ — 2023-11-17 19:10:10 UTC

voice over

mstewart1218_ — 2023-11-17 19:10:10 UTC