Download - Bab 7 Sistem Penghadaman 1
![Page 1: Bab 7 Sistem Penghadaman 1](https://reader035.vdocuments.net/reader035/viewer/2022062515/55cf99f7550346d0339feb89/html5/thumbnails/1.jpg)
PENGENALAN DAN FUNGSI PENGHADAMAN
![Page 2: Bab 7 Sistem Penghadaman 1](https://reader035.vdocuments.net/reader035/viewer/2022062515/55cf99f7550346d0339feb89/html5/thumbnails/2.jpg)
2
Digestive System
• Alimentary Canal: hollow tube extending from mouth to anus• Technically outside the body• Covered with mucous membrane
• Accessory digestive organs – teeth, tongue, gallbladder, salivary glands, liver, and pancreas
![Page 3: Bab 7 Sistem Penghadaman 1](https://reader035.vdocuments.net/reader035/viewer/2022062515/55cf99f7550346d0339feb89/html5/thumbnails/3.jpg)
FUNCTIONS OF THE DIGESTIVE SYSTEM
FUNCTIONS OF THE DIGESTIVE SYSTEM
1. Take in food
2. Break down the food
3. Absorb digested molecules
4. Provide nutrients
5. Eliminate wastes
![Page 4: Bab 7 Sistem Penghadaman 1](https://reader035.vdocuments.net/reader035/viewer/2022062515/55cf99f7550346d0339feb89/html5/thumbnails/4.jpg)
The Digestive System
![Page 5: Bab 7 Sistem Penghadaman 1](https://reader035.vdocuments.net/reader035/viewer/2022062515/55cf99f7550346d0339feb89/html5/thumbnails/5.jpg)
Digestive Tract Histology
1. Mucosa2. Submucosa3. Muscularis4. Serosa (adventitia)
![Page 6: Bab 7 Sistem Penghadaman 1](https://reader035.vdocuments.net/reader035/viewer/2022062515/55cf99f7550346d0339feb89/html5/thumbnails/6.jpg)
Goals of the Digestive System
1. Extract nutrients from food
2. Transform nutrients into useful forms
Ex- oreo= glucose
3. Absorb nutrients and distribute them where they are needed
![Page 7: Bab 7 Sistem Penghadaman 1](https://reader035.vdocuments.net/reader035/viewer/2022062515/55cf99f7550346d0339feb89/html5/thumbnails/7.jpg)
Functions of the Digestive System
• Ingestion: intake of nutrients
• Digestion: breakdown of large particles into smaller ones
• Absorption: uptake of nutrient molecules
• Defecation: elimination of undigested residues
![Page 8: Bab 7 Sistem Penghadaman 1](https://reader035.vdocuments.net/reader035/viewer/2022062515/55cf99f7550346d0339feb89/html5/thumbnails/8.jpg)
Actions of the Digestive System
1. Motility- Breaks up food
- Moves food through the GI tract (Peristalsis)
- Mixes with digestive enzymes
2. Secretion- Release of enzymes and hormones for chemical
digestion and regulation
3. Membrane Transport- Absorption of nutrients from the tissues by the
blood and lymph for transport
![Page 9: Bab 7 Sistem Penghadaman 1](https://reader035.vdocuments.net/reader035/viewer/2022062515/55cf99f7550346d0339feb89/html5/thumbnails/9.jpg)
Stages of Digestion
• Mechanical: physical breakdown of food
• Chemical: digestive enzymes hydrolyze food particles to break larger molecules into smaller ones
• Some nutrients are absorbed with out digestion– Vitamins, minerals, cholesterol, water