Page 23 - CHAPTER 1 DIGESTION SYSTEM (2).pptx (Ebook Cover)

CHAPTER 1
1.1 Digestion System
Major & Accessories Organ of Digestive System

MOUTH ESOPHAGUS STOMACH
Food enters the The fibromuscular tube A muscular organ
alimentary canal connecting the mouth to where food is mixed
through mouth the stomach is called the with gastric juices.
esophagus. Food is Gastric juice has a low
pushed down using a pH, meaning it is acidic,
wave like muscular and is used to help
motion called digest food and kill
peristalsis. potentially harmful
bacteria.

LIVER GALLBLADDER PANCREAS

Biological catalyst called
In the digestive This is enzymes are produced
system, the liver where bile is stored in the pancreas.
produces bile which and concentrated digestive enzymes
helps with the speed up the breaking
digestion of fats and down of large nutrient
oils molecules

SMALL LARGE ANUS
INTESTINE INTESTINE
It is made up of two
Food is mixed with parts, the colon and Feces leave the
digestive enzymes the rectum. In the allimentary canal
and bile in the colon, water is through the anus
small intestines. reabsorbed from the
nutrients are then food. Feces are stored
absorbed into the in the rectum until they
bloodstream are ready to be passed.

NUTRITION AND HEALTH 2023
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