AOHS Foundations of Anatomy and Physiology II Lesson

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AOHS Foundations of Anatomy and Physiology II Lesson 18 Digestive System Conditions Copyright ©

AOHS Foundations of Anatomy and Physiology II Lesson 18 Digestive System Conditions Copyright © 2014‒ 2016 NAF. All rights reserved.

Peptic ulcers are a hole in the stomach lining that can cause sharp pain

Peptic ulcers are a hole in the stomach lining that can cause sharp pain Most peptic ulcers are caused by a bacterium, Heliobacter pyloris. The bacterium burrows through the mucus layer of the stomach or duodenum, exposing epithelial cells to the stomach’s gastric juice. This exposure causes painful tissue damage. A close-up view of an ulcer through an instrument called an endoscope.

Diarrhea is a serious symptom caused by many different kinds of conditions If untreated,

Diarrhea is a serious symptom caused by many different kinds of conditions If untreated, recurring diarrhea can lead to severe dehydration and even death. Diarrhea is the most common cause of death for children under 5 years old in the developing world. Cholera bacteria What might be some ways to prevent diarrhea outbreaks?

Constipation occurs if feces stay in the colon too long and too much water

Constipation occurs if feces stay in the colon too long and too much water gets removed It is normal to move your bowels anywhere from three times a day to three times a week. Constipation is defined as fewer than two bowel movements a week.

Crohn’s disease is an autoimmune condition that causes damaging inflammation in the intestines The

Crohn’s disease is an autoimmune condition that causes damaging inflammation in the intestines The intestinal walls of people with Crohn’s disease become thick and stiff. As a result, the intestine absorbs fewer nutrients and less water, leading to diarrhea and nutrient deficiencies.

Hepatitis is inflammation of the liver There are several types of hepatitis. The most

Hepatitis is inflammation of the liver There are several types of hepatitis. The most common ones are caused by viruses. The disease spreads through contaminated water, sexual contact, or contact with the blood of an infected person.

Gallstones are deposits of cholesterol or pigment that lodge in the gallbladder Gallstones can

Gallstones are deposits of cholesterol or pigment that lodge in the gallbladder Gallstones can be very small, like grains of sand, or much larger, even an inch around. Larger gallstones can reduce or block the flow of bile from the liver to the small intestine. Gallstones removed from a patient and placed next to a ruler

Appendicitis is always a medical emergency Symptoms vary: dull pain in the abdomen that

Appendicitis is always a medical emergency Symptoms vary: dull pain in the abdomen that becomes sharp to the lower right, abdominal swelling, nausea, fever, cramps, loss of appetite If you’ve known someone with appendicitis, what were his or her first symptoms?