powerpoint presentation - the human digestive...
TRANSCRIPT
![Page 1: PowerPoint Presentation - The Human Digestive Systemmshawks.weebly.com/.../digestive_system_ppt_teamhagen.pdf · 2018-09-07 · PowerPoint Presentation - The Human Digestive System](https://reader033.vdocument.in/reader033/viewer/2022060420/5f1735644e4a5c19b64f85d3/html5/thumbnails/1.jpg)
Digestive System
Directions: get out a sheet of paper
Warmup: What is the digestive system?
![Page 2: PowerPoint Presentation - The Human Digestive Systemmshawks.weebly.com/.../digestive_system_ppt_teamhagen.pdf · 2018-09-07 · PowerPoint Presentation - The Human Digestive System](https://reader033.vdocument.in/reader033/viewer/2022060420/5f1735644e4a5c19b64f85d3/html5/thumbnails/2.jpg)
On a sheet of paper, write the name of each colored organ: (pre test)
• Green:
• Red:
• Pink:
• Brown:
• Purple:
• Dark Green:
• Yellow:
![Page 3: PowerPoint Presentation - The Human Digestive Systemmshawks.weebly.com/.../digestive_system_ppt_teamhagen.pdf · 2018-09-07 · PowerPoint Presentation - The Human Digestive System](https://reader033.vdocument.in/reader033/viewer/2022060420/5f1735644e4a5c19b64f85d3/html5/thumbnails/3.jpg)
How’d you do?
• Green: Esophagus
• Red: Stomach
• Pink: Small Intestine
• Brown: Large Intestine
• Purple: Liver
• Dark Green: Gall Bladder
• Yellow: PancreasGreat Job!
![Page 5: PowerPoint Presentation - The Human Digestive Systemmshawks.weebly.com/.../digestive_system_ppt_teamhagen.pdf · 2018-09-07 · PowerPoint Presentation - The Human Digestive System](https://reader033.vdocument.in/reader033/viewer/2022060420/5f1735644e4a5c19b64f85d3/html5/thumbnails/5.jpg)
Digestion
• Phases Include
1. Ingestion
2. Movement
3. Mechanical and Chemical Digestion
4. Absorption
5. Elimination
![Page 6: PowerPoint Presentation - The Human Digestive Systemmshawks.weebly.com/.../digestive_system_ppt_teamhagen.pdf · 2018-09-07 · PowerPoint Presentation - The Human Digestive System](https://reader033.vdocument.in/reader033/viewer/2022060420/5f1735644e4a5c19b64f85d3/html5/thumbnails/6.jpg)
Digestion• Types
• Mechanical (physical)
• Chew
• Tear
• Grind
• Mash
• Mix
• Chemical
• Enzymatic reactions to improve digestion of
•Carbohydrates
•Proteins
•Lipids
![Page 7: PowerPoint Presentation - The Human Digestive Systemmshawks.weebly.com/.../digestive_system_ppt_teamhagen.pdf · 2018-09-07 · PowerPoint Presentation - The Human Digestive System](https://reader033.vdocument.in/reader033/viewer/2022060420/5f1735644e4a5c19b64f85d3/html5/thumbnails/7.jpg)
Digestive System Organization
• Gastrointestinal (Gl) tract
• Tube within a tube
• Direct link/path between organs
• Structures• Mouth
• Pharynx
• Esophagus
• Stomach
• Small intestine
• Large Intestine
• Rectum
7
![Page 8: PowerPoint Presentation - The Human Digestive Systemmshawks.weebly.com/.../digestive_system_ppt_teamhagen.pdf · 2018-09-07 · PowerPoint Presentation - The Human Digestive System](https://reader033.vdocument.in/reader033/viewer/2022060420/5f1735644e4a5c19b64f85d3/html5/thumbnails/8.jpg)
Mouth
• Teeth mechanically break down food into small pieces. Tongue mixes food with saliva (contains amylase, which helps break down starch).
• Epiglottis is a flap-like structure at the back of the throat that closes over the trachea preventing food from entering it. It is located in the Pharynx.
![Page 9: PowerPoint Presentation - The Human Digestive Systemmshawks.weebly.com/.../digestive_system_ppt_teamhagen.pdf · 2018-09-07 · PowerPoint Presentation - The Human Digestive System](https://reader033.vdocument.in/reader033/viewer/2022060420/5f1735644e4a5c19b64f85d3/html5/thumbnails/9.jpg)
Esophagus
• Approximately 20 cm long.
• Functions include:
1.Secrete mucus
2.Moves food from the throat to the stomach using muscle movement called peristalsis
• If acid from the stomach gets in here that’s heartburn.
Mouth, Pharynx and Esophagus Video
![Page 10: PowerPoint Presentation - The Human Digestive Systemmshawks.weebly.com/.../digestive_system_ppt_teamhagen.pdf · 2018-09-07 · PowerPoint Presentation - The Human Digestive System](https://reader033.vdocument.in/reader033/viewer/2022060420/5f1735644e4a5c19b64f85d3/html5/thumbnails/10.jpg)
Stomach
10
• J-shaped muscular bag that stores the food you eat, breaks it down into tiny pieces.
• Mixes food with Digestive Juices that contain enzymes to break down Proteins and Lipids.
• Acid (HCl) in the stomach Kills Bacteria.
• Food found in the stomach is called Chyme.
![Page 11: PowerPoint Presentation - The Human Digestive Systemmshawks.weebly.com/.../digestive_system_ppt_teamhagen.pdf · 2018-09-07 · PowerPoint Presentation - The Human Digestive System](https://reader033.vdocument.in/reader033/viewer/2022060420/5f1735644e4a5c19b64f85d3/html5/thumbnails/11.jpg)
Small Intestine
• Small intestines are roughly 7 meters long
• Lining of intestine walls has finger-like projections called villi, to increase surface area.
• The villi are covered in microvilli which further increases surface area for absorption.
11Crash Course Review
![Page 12: PowerPoint Presentation - The Human Digestive Systemmshawks.weebly.com/.../digestive_system_ppt_teamhagen.pdf · 2018-09-07 · PowerPoint Presentation - The Human Digestive System](https://reader033.vdocument.in/reader033/viewer/2022060420/5f1735644e4a5c19b64f85d3/html5/thumbnails/12.jpg)
Small Intestine• Nutrients from the food pass into the
bloodstream through the small intestine walls.
• Absorbs:• 80% ingested water
• Vitamins
• Minerals
• Carbohydrates
• Proteins
• Lipids
• Secretes digestive enzymes
12
![Page 13: PowerPoint Presentation - The Human Digestive Systemmshawks.weebly.com/.../digestive_system_ppt_teamhagen.pdf · 2018-09-07 · PowerPoint Presentation - The Human Digestive System](https://reader033.vdocument.in/reader033/viewer/2022060420/5f1735644e4a5c19b64f85d3/html5/thumbnails/13.jpg)
Large Intestine
• About 1.5 meters long
• Accepts what small intestines don’t absorb
• Rectum (short term storage which holds feces before it is expelled).
![Page 14: PowerPoint Presentation - The Human Digestive Systemmshawks.weebly.com/.../digestive_system_ppt_teamhagen.pdf · 2018-09-07 · PowerPoint Presentation - The Human Digestive System](https://reader033.vdocument.in/reader033/viewer/2022060420/5f1735644e4a5c19b64f85d3/html5/thumbnails/14.jpg)
Large Intestine
• Functions
• Bacterial digestion
• Ferment carbohydrates
– Absorbs more water
– Concentrate wastes
![Page 15: PowerPoint Presentation - The Human Digestive Systemmshawks.weebly.com/.../digestive_system_ppt_teamhagen.pdf · 2018-09-07 · PowerPoint Presentation - The Human Digestive System](https://reader033.vdocument.in/reader033/viewer/2022060420/5f1735644e4a5c19b64f85d3/html5/thumbnails/15.jpg)
Accessory Organs The Glands
• Not part of the path of food, but play a critical role.
• Include: Liver, gall bladder, and pancreas
![Page 16: PowerPoint Presentation - The Human Digestive Systemmshawks.weebly.com/.../digestive_system_ppt_teamhagen.pdf · 2018-09-07 · PowerPoint Presentation - The Human Digestive System](https://reader033.vdocument.in/reader033/viewer/2022060420/5f1735644e4a5c19b64f85d3/html5/thumbnails/16.jpg)
Liver
• Directly affects digestion by producing bile
• Bile helps digest fat
• filters out toxins and waste including drugs and alcohol and poisons.
16
![Page 17: PowerPoint Presentation - The Human Digestive Systemmshawks.weebly.com/.../digestive_system_ppt_teamhagen.pdf · 2018-09-07 · PowerPoint Presentation - The Human Digestive System](https://reader033.vdocument.in/reader033/viewer/2022060420/5f1735644e4a5c19b64f85d3/html5/thumbnails/17.jpg)
Gall Bladder
• Stores bile from the liver, releases it into the small intestine.
• Fatty diets can cause gallstones
![Page 18: PowerPoint Presentation - The Human Digestive Systemmshawks.weebly.com/.../digestive_system_ppt_teamhagen.pdf · 2018-09-07 · PowerPoint Presentation - The Human Digestive System](https://reader033.vdocument.in/reader033/viewer/2022060420/5f1735644e4a5c19b64f85d3/html5/thumbnails/18.jpg)
Pancreas
• Produces digestive enzymes to digest fats, carbohydrates and proteins
• Regulates blood sugar by producing insulin
Web Page Reinforcement Video
![Page 19: PowerPoint Presentation - The Human Digestive Systemmshawks.weebly.com/.../digestive_system_ppt_teamhagen.pdf · 2018-09-07 · PowerPoint Presentation - The Human Digestive System](https://reader033.vdocument.in/reader033/viewer/2022060420/5f1735644e4a5c19b64f85d3/html5/thumbnails/19.jpg)