The Digestive System

The Digestive SystemThe Digestive SystemMr. Gerlach’s Mr. Gerlach’s

77thth Grade Grade Health EducationHealth Education

The Digestive SystemThe Digestive System

Defn:Defn: Changes food you Changes food you eat into nutrients that eat into nutrients that your cells can use.your cells can use.Alimentary Canal:Alimentary Canal: The The complete digestive complete digestive system (mouth to system (mouth to rectum).rectum).DigestionDigestion: : Food is Food is chemically changed so chemically changed so that it can be absorbed that it can be absorbed into the bloodstream.into the bloodstream.

Parts of the Digestive SystemParts of the Digestive System

Teeth:Teeth: Grinds your Grinds your food.food.Salivary Glands:Salivary Glands: Produce the saliva in Produce the saliva in your mouth.your mouth.Tongue:Tongue: Helps to Helps to push food into your push food into your esophagus.esophagus.

Parts of the Digestive SystemParts of the Digestive System

Esophagus:Esophagus: The The tube that carries food tube that carries food from the mouth to the from the mouth to the stomach.stomach.Epiglottis:Epiglottis: The flap The flap of skin that covers the of skin that covers the tracheatracheaUvula:Uvula: Covers the Covers the nasal passagenasal passage

Peristalsis WavesPeristalsis Waves

Parts of the Digestive SystemParts of the Digestive System

Stomach:Stomach: Stores all Stores all the food. (warehouse the food. (warehouse for food)for food)Sphincter muscles:Sphincter muscles: The muscles found at The muscles found at each end of the each end of the stomach.stomach. Chyme:Chyme: Liquid lumpy Liquid lumpy material that is made material that is made by the stomach.by the stomach.

How food moves through the How food moves through the Digestive System !!Digestive System !!

Peristalsis Waves:Peristalsis Waves: A A ring of muscle that ring of muscle that moves food through moves food through the digestive system.the digestive system.Absorption:Absorption: The The process where process where digested food gets digested food gets into the blood streaminto the blood stream

Absorption in the Small IntestineAbsorption in the Small Intestine

Villi:Villi: Tiny projections Tiny projections on the inner walls of on the inner walls of the small intestine the small intestine where absorption where absorption takes place.takes place.

Parts of the Digestive SystemParts of the Digestive System

Small Intestine:Small Intestine: Where digestion first Where digestion first takes place.takes place.

Duodenum:Duodenum: The tube The tube that runs from the that runs from the stomach to the small stomach to the small intestine.intestine.

Parts of the Digestive SystemParts of the Digestive System

ColonColonLarge Intestine:Large Intestine:Three Parts:Three Parts:

1.1. Ascending ColonAscending Colon2.2. Traverse ColonTraverse Colon3.3. Descending ColonDescending Colon

Appendix:Appendix: Attached Attached to the beginning of to the beginning of the Ascending Colonthe Ascending Colon

Other Parts of the Digestive Other Parts of the Digestive SystemSystem

Liver:Liver: Makes bile and Makes bile and sends it to the gall sends it to the gall bladder.bladder.Bile:Bile: A substance A substance produced by the liver produced by the liver and stored in the gall and stored in the gall bladder.bladder.Gall Bladder:Gall Bladder: Receives bile from Receives bile from the liver and stores the liver and stores the bilethe bile

Other Parts of the Digestive Other Parts of the Digestive SystemSystem

Pancreas:Pancreas: Breaks Breaks down sugars and down sugars and starches.starches.

The Human Digestive SystemThe Human Digestive System

This link provided us with a great review This link provided us with a great review activity for learning the Digestive System activity for learning the Digestive System parts.parts.BackBack

The Process of Removing WasteThe Process of Removing Waste

Kidneys:Kidneys: Filter the water Filter the water and dissolved wastes in and dissolved wastes in the body.the body.Ureters:Ureters: Narrow tubes Narrow tubes that carry urine from your that carry urine from your kidneys to the bladder.kidneys to the bladder.Bladder:Bladder: Urine is stored Urine is stored in the bladderin the bladderUrethra:Urethra: A narrow tube A narrow tube that carries urine from the that carries urine from the bodybody

Problems of the Digestive SystemProblems of the Digestive System

Indigestion:Indigestion: Stomach Stomach too acidictoo acidic, may be , may be caused by eating too fast caused by eating too fast or too much or by spicy or or too much or by spicy or acidic foods.acidic foods.Diarrhea:Diarrhea: Watery feces; Watery feces; caused by bacteria, virus, caused by bacteria, virus, food poisoning, nutritional food poisoning, nutritional deficiencies.deficiencies.Ulcers:Ulcers: Sores on the Sores on the inner walls of the inner walls of the stomach or small stomach or small Intestines.Intestines.

Problems of the Digestive SystemProblems of the Digestive System

Cirrhosis:Cirrhosis: Destruction on liver Destruction on liver tissue; caused by tissue; caused by drinking too much drinking too much alcohol.alcohol.Gallstones: Gallstones: Crystals Crystals in gallbladder;in gallbladder; may may block passage of bile block passage of bile to small intestines.to small intestines.

Problems of the Digestive SystemProblems of the Digestive System

Kidney Stones:Kidney Stones: Crystals in the kidneyCrystals in the kidney; ; may block passage of may block passage of urine to the bladder.urine to the bladder.

Problems of the Digestive SystemProblems of the Digestive System

Appendicitis:Appendicitis: Inflammation of the Inflammation of the appendixappendix

Problems of the Digestive SystemProblems of the Digestive System

Colon Cancer: Colon Cancer: Uncontrolled growth Uncontrolled growth of abnormal cells in of abnormal cells in large intestine.large intestine.

Care of the Digestive SystemCare of the Digestive System

The best way to take care of the digestive The best way to take care of the digestive is to practice healthful eating habitsis to practice healthful eating habits Eat a variety of food from different food Eat a variety of food from different food

groups, low in fat high in fiber.groups, low in fat high in fiber. Do not hurry through your meals. Enjoy your Do not hurry through your meals. Enjoy your

foodfood Eat enough food to satisfy your hunger.Eat enough food to satisfy your hunger. Drink plenty of water.Drink plenty of water. Have regular dental checkupsHave regular dental checkups