1. Human Digestive System
Diseases/Disorders
of the
Human Digestive System

2. What happens when water is not reabsorbed by the large intestine?

4. Diarrhea http://www.youtube.com/watch?v=ln_crYIBw00&feature=related

5. Diarrhea intestinal disturbance
increased peristaltic activity of the large intestine
decreased water absorption
results in increased, multiple, watery feces; may result severe dehydration especially in infants.

6. What happens when too much water reabsorbed by the large intestine?

7. Constipation

8. Constipation sluggish peristaltic movement
too much water is reabsorbed
the solid waste hardens
large intestine is emptied with difficulty

9. What is this?

10. Appendicitis is an inflammation of the appendix due to infection.

13. A Gastric Ulcer

14. Ulcer
open sore in the mucus membrane resulting from localized breakdown of tissues

15. Other Malfunctions of the Digestive System
Ulcers are open sores in the interior wall of the digestive tract, most often in the stomach or the upper portion of the small intestine.
The acid in gastric juice irritates the sores and causes pain or discomfort.

16. Bacteria cause ulcers

17. Gallstones

18. Gallstones

19. Gallstones are an accumulation of hardened cholesterol and/or deposits in the gall bladder.
Cause - if your liver excretes more cholesterol than your bile can dissolve, the excess cholesterol may form into crystals and eventually into stones.
Risk Factors
Eating a high-fat diet
Eating a high-cholesterol diet
Eating a low-fiber diet

21. Colon Cancer

22. Endoscope

24. Colorectal Cancer SEER Incidence Rates. by Race and Ethnicity, U. S

25. Colorectal Cancer U.S. Death Rates* by Race and Ethnicity, 1975–2005

27. Colon cleansing

30. liver

31. Crohn’s Disease
chronic inflammatory condition of the gastrointestinal tract

32. Crohn’s Disease Symptoms General symptoms • Rectal bleeding
• Persistent Diarrhea
• Rectal bleeding
• Urgent need to move bowels
• Abdominal cramps and pain
• Sensation of incomplete evacuation
• Constipation (can lead to bowel obstruction)
General symptoms
• Fever
• Loss of appetite
• Weight Loss
• Fatigue
• Night sweats
• Loss of normal menstrual cycle

33. Crohn’s Disease Cause ????? genetics, and/or environmental factors
Diet and stress may aggravate Crohn’s Disease, but they do not cause the disease
on their own

34. Crohn’s Disease Cause Autoimmune disease
Harmless symbiotic bacteria are mistaken for harmful invaders and the immune system mounts a response. Cells travel out of the blood to the intestines and produce inflammation. Chronic inflammation leads to a patient’s symptoms.

35. Irritable Bowel Syndrome
Syndrome - a group of symptoms that occur together
Symptoms
abdominal pain or discomfort, cramping,
bowel movements that occur more or less often than usual
stool that appears less solid and more watery, or harder and more lumpy, than usual
bowel movements that improve the discomfort

36. Irritable Bowel Syndrome
Brain-Gut Signal Problems; Altered levels of neurotransmitters and hormones
- Hyper-reactivity of intestines (too much peristalsis)
- Hypersensitivity to pain
- Mental Health Problems
- Bacterial infection; Small Intestinal Bacterial Overgrowth
- Genetics or Environmental?
- Food sensitivity; allergies, absorption issues

37. Enjoy Your
Lunch!