The Digestive System<br />Esophagus<br />Stomach<br />Small Intestine<br />Liver<br />
Esophagus<br />Muscular tube, lined with moist stratified squamous epithelium that extends from the pharnyx to the stomach...
Esophagus (continued….)<br />Esophageal sphincters regulate the movement of food into and out of the esophagus.<br />
Stomach<br />Enlarged segment of the digestive tract in the superior part of the abdomen<br />Lined with simple columnar e...
Stomach (continued……)<br />Cephalic Phase- sensations of taste, the smell of food, stimulation of the tactile receptions d...
Small Intestine<br />6 meters long<br />Duodenum-25cm long<br />Jejunum-2.5 m long<br />Ileum-3.5m long<br />Major site of...
Small Intestine (continued….)<br />Major function is absorption of nutrients<br />Most occurs in the duodenum and jejunum<...
Liver<br />Weighs about 1.36 kilograms<br />Located in the right upper quadrant of the abdomen<br />Divided into right lob...
Liver (continued…..)<br />Synthesizes new molecules<br />Neutralizes stomach acid by increasing the efficiency of fat dige...
Upcoming SlideShare
Loading in …5
×

The digestive system

244 views

Published on

Published in: Education, Business, Technology
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
244
On SlideShare
0
From Embeds
0
Number of Embeds
1
Actions
Shares
0
Downloads
3
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

The digestive system

  1. 1. The Digestive System<br />Esophagus<br />Stomach<br />Small Intestine<br />Liver<br />
  2. 2. Esophagus<br />Muscular tube, lined with moist stratified squamous epithelium that extends from the pharnyx to the stomach.<br />25 Cm Long<br />Transports food from the pharnyx to the stomach <br />Upper and lower esophageal sphincters are located at the upper and lower ends of the esophagus.<br />
  3. 3. Esophagus (continued….)<br />Esophageal sphincters regulate the movement of food into and out of the esophagus.<br />
  4. 4. Stomach<br />Enlarged segment of the digestive tract in the superior part of the abdomen<br />Lined with simple columnar epithelium.<br />Storage and mixing chamber for ingested food<br />Regulates secretions and could be divided into 3 phases.<br />
  5. 5. Stomach (continued……)<br />Cephalic Phase- sensations of taste, the smell of food, stimulation of the tactile receptions during the process of chewing and swallowing.<br />Gastric Phase- period during which the greatest volume of gastric secretion occurs<br />Intestinal Phase- primarily inhibits gastric secretions<br />
  6. 6. Small Intestine<br />6 meters long<br />Duodenum-25cm long<br />Jejunum-2.5 m long<br />Ileum-3.5m long<br />Major site of digestion and absorption of food<br />
  7. 7. Small Intestine (continued….)<br />Major function is absorption of nutrients<br />Most occurs in the duodenum and jejunum<br />Mixing and propulsion of chyme occurs here<br />
  8. 8. Liver<br />Weighs about 1.36 kilograms<br />Located in the right upper quadrant of the abdomen<br />Divided into right lobe and left lobe <br />Stores and processes nutrients, detoxifies harmful chemicals<br />
  9. 9. Liver (continued…..)<br />Synthesizes new molecules<br />Neutralizes stomach acid by increasing the efficiency of fat digestion and absorption.<br />

×