Digestive System Flashcards
What are the 5 main functions of the Digestive System?
Sense of taste, Digestion, Absorption, Elimination of waste, Storage
The ______ transports food from the mouth to the stomach?
Oesophagus
The part of the DS that is a mixing chamber and holding reservoir is called what?
The stomach
Where is bile produced?
Liver
What does the Gallbladder do?
Stores and concentrates bile
What is the main function of the large intestine?
Absorption of water and formation of faeces
From mouth to anus, list the path that food travels.
Mouth, oesophagus, stomach, small intestine (duodenum, jejunum, ileum), large intestine (ascending colon, traverse colon, descending colon, sigmoid colon) rectum, anus
Name 3 accessory glands associated with the gastrointestinal tract.
Salivary glands, Pancreas, liver
Name the four parts of the large intestine
Ascending colon, traverse colon, descending colon, sigmoid colon
Name the four parts of the small intestine
Duodenum, jejunum, ileum, caecum
What is the term for large carbohydrates, lipids and proteins and nucleic acid molecules being broken down by enzymes?
Chemical digestion
What is mechanical digestion?
Teeth cut and grind food before it is swallowed and then the smooth muscle of the stomach and small intestines churn the food
What are some benefits of microflora in the gut?
Vitamin B & K synthesis, strengthening the intestinal epithelium, training the immune system, inhibition of pathogens
What role does gut flora play in defending against pathogens?
Taking up space, using all the nutrients and secreting compounds that kill or inhibit unwelcome organisms
Name some pathogenic bacteria that can cause food poisoning
Salmonella, E. coli
