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Mouth/Salivary Glands- the salivary glands are located in the mouth and produce saliva to help with mechanical breakdown. Amylase breaks down carbohydrates during chemical digestion. All of these functions are used during ingestion. During ingestion, you ingest a bolus that gets broken down and digested through the body and eventually out of the body.

Epiglottis- Flap of tissue that sits beneath the tongue at the back of the throat. Its main function is to close over the windpipe (trachea) while you're eating to prevent food from entering your airway and stop choking

Esophagus- The primary function of the Esophagus is to transport food entering the mouth through the throat and into the stomach. Mucus can be triggered by illness which can lead to the throat being sensitive to stomach acid. but Peristalsis helps food move down the throat using a series of wave-like muscle contractions that move food through the digestive tract. Acid reflux occurs when the sphincter muscle at the lower end of your esophagus relaxes at the wrong time, allowing stomach acid to back up into your esophagus. This can cause heartburn.

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Stomach- The stomach uses HCl to break down and digest the food in the stomach, creating chyme. The HCl also denatures proteins which get digested by pepsin.

Small Intestine- The small intestine breaks down food, mostly things that cannot be digested by the stomach like lipids using chemical digestion. Using villi that line the inside of the small intestine, the process of absorption occurs to get necessary nutrients into the organ.

Large Intestine- The function is to absorb water and other salts/vitamins from undigested food. It is also responsible for egestion and the composition of feces/shipment to the rectum.

Gallbladder- It is responsible for storing bile which is produced by the liver to emulsify lipids.

Pancreas- The pancreas produces enzymes needed to break down certain foods and because it uses enzymes it is a form of chemical digestion. Another job of the pancreas is insulin creation which is necessary for sugar storage.

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Slide show: See how your digestive system works

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A step-by-step look at how your digestive system works, from top to bottom.

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Liver- The liver filters all the blood in the body and uses detoxification it also uses bile to breakdown any fats to fatty acids

Appendix- A vestigial organ which it's original purpose was to store bacteria, but humans have evolved to not need it anymore

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Ingestion- swallowing or absorbing food from the mouth down into the stomach

Mechanical breakdown- when your teeth grind together to break down food

Bolus- a ball of chewed-up food

Amylase- breaks down starches(complex carbohydrates) into sugars which your body can more easily absorb.

Carbohydrates- starches that get broken down into smaller sugars.

Mouth- where the salivary glands are located and where digestion starts to happen.

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Choking- when food and fluid that should go down your esophagus end up in your larynx so your body coughs so your larynx can dislodge the food or fluid

Trachea- a tube that brings air to and from the lungs, the windpipe.

Mucus- a gelatinous material that lines your lungs, throat, nose, and certain other body parts

Peristalsis- wave-like muscle contractions that move food through the digestive tract to allow your body to swallow

Heartburn- when the sphincter muscle at the lower end of your esophagus relaxes at the wrong time, causing acid reflex and allowing stomach acid to back up into your esophagus

HCl- HCl is in the in the gastric juice that breaks down the food and denatures proteins

Protein- a macromolecule made up of building blocks called amino acids

Pepsin- Pepsin is a stomach enzyme that digests proteins found in the food that you eat

Lipids- macromolecules that are fatty compounds that perform a variety of functions in your body

Chemical Digestion- your body uses certain enzymes to break down nutrients into smaller molecules that can be absorbed

Villi- the inside of the small intestine is lined with villi that absorb nutrients

Absorption- absorption occurs in the small intestine because of the villi lining the small intestine

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Water- ingested water is absorbed into the large intestine

Feces- a waste product of digestion which is later excreted

Vitamins- absorbed from other nutrients

Egestion- discharging of waste

Liver- contains bile to digest fats

Bile- fat-digesting liquid made by the liver

Emulsify- bile mixing with lipids and breaking them down into smaller products

Enzymes- Proteins that process and digest foods

Insulin- A chemical produced that processes sugars

Bile- breaks down fatty acids

Detoxification- Getting rid of toxic waste products

Vestigial organ- a once necessary organ that humans have evolved to not need anymore

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Digestive Padlet