Flashcards in Structures of the Digestive System Deck (15):
What are the two parts to the digestive system?
-Gastrointestinal tract (GI tract)
-Accessory digestive organs
What is the Gastrointestinal tract (GI tract)?
-The pathway from the mouth to the anus
-Most organs of the GI tract protected by the peritoneum
What is the Accessory digestive organs?
-Providing digestive secretions
What does the Gastrointestinal Tract do?
-Absorbs nutrients and water into the blood
Components of the gastrointestinal tract
-Mouth- food is moistened and chewed
-Esophagus-tube leading to the stomach
-Stomach-secretes chemicals to digest foods
-Small intestine-majority of digestion and absorption of nutrients
-Large intestine (colon)-completes absorption of nutrients and water
-Rectum and anus- store and eliminate waste
Components of the accessory digestive system
-Tongue and teeth- chew food
-Salivary glands- secrete saliva
-Liver- neutralizes or removes harmful substance, produces bile for digestion
-Gallbladder-concentrates and stores bile that is made in the liver
-Pancreas-pancreatic juice that neutralizes stomach acid, further digests food
Components of the Digestive System
Normal Microbiota of the Digestive System of the Tongue and teeth
Normal Microbiota of the Digestive System of the
-Microbiota = microbial antagonists
Bacterial Diseases of the Digestive System
-Bacterial food poisoning (intoxication)
What is Bacterial Gastroenteritis?
-Inflammation of the stomach or intestines due to the presence of bacteria
-Contaminated foods or water
General features for Bacterial Gastroenteritis
Sever Bacterial Gastroenteritis
Produces loose, frequent stool containing mucus and blood
Common viral diseases of the digestive system