Introducing 

Prezi AI.

Your new presentation assistant.

Refine, enhance, and tailor your content, source relevant images, and edit visuals quicker than ever before.

Loading…
Transcript

Digestive System

First...

You enter through the mouth

The Mouth

In the mouth...

In the mouth...

The teeth tear apart the food and physically break it down. The

amylase enzyme is in the saliva and breaks down starches into monsaccharides and dysaccharides.

The salivary glands are what releases the amylase that breaks

down starches!

In the pharynx...

The pharynx transports food from the mouth to the esophagus. This plays an important role in swallowing. Contains epiglottis, a lid like structure that closes off the entrance like a windpipe.

The

Pharynx

The Esophagus

In the Esophagus...

In the esophagus, a process called peristalsis squeezes the bolus down into the stomach.

The bolus causes the esophagus to stretch in wave like rhythmic contractions.

This process of bolus causes the food to move down the esophagus.

In the Stomach...

HC1, is an acidic chemical that kills harmful pathogens and other bacteria. Gastrin, a hormone that causes HC1 to be produced. The HC1 turns pepsinogen into pepsin and this breaks down polypeptides. The ridges on the stomach allow it to expand and contract, mixing food and gastric juices. Water, specific vitamins, some medications, and alcohol are absorbed in the stomach.

The

Stomach

In the liver and gallbladder...

The liver and gallbladder is an accessory organ and is not a part of the alimentary canal. They work together to secrete bile and enzymes to aid in the digest of fats. They store bile and releases it into the small intestine as needed removing toxins from the blood.

The

Liver &

Gallbladder

In the pancreas...

As well as the liver and gallbladder, the pancreas is an accessory organ that is not part of the alimentary canal. the pancreas secretes digestive juices and enzymes into the small intestine as needed. This gland has important roles in both the digestive and endocrine systems.

The pancreas has pepsin which breaks down proteins and helps in the stomach. It also uses lipase and amylase in the small intestine.

The

Pancreas

In the small intestine...

The lipase and amylase from the pancreas helps to mix chyme coming from the stomach with digestive juices to complete the digestion and absorption of most nutrients. In the duodenum, chyme is mixed with pancreatic juices and bile. The small intestine also absorbs bile from the liver and gallbladder.

The

Small Intestine

In the large intestine...

The large intestine absorbs excess water and prepares solid waste for elimination, extends from the end of the small intestine to the anus.

The

Large Intestine

In the rectum...

The rectums function is to control the excretion of solid waste. It makes up 4 inches of large intestine, the anus is the lower opening and is the flow of waste.

The

Rectum

Learn more about creating dynamic, engaging presentations with Prezi