Digestive system 1
Where does the first step of the digestive system take place?
Mouth
What is the function of the esophagus?
Transports food from the mouth to the stomach
What are the accessory organs to the gastrointestinal system?
Salivary glands, liver, gallbladder & pancreas
What is the name for a chemical that speeds up a chemical reaction in the body. An example of this is amylase.
Enzyme
Name 3 components of the small intestine.
Duodenum, Jejunum, ileum
Name the MAIN digestive system organs in the correct order (Hint: 5 organs)
Mouth, esophagus, stomach, small intestine, large intestine
What is mechanical digestion?
Breaking down of materials by breaking, tearing, crushing and mashing
If you were to lay them rolled out, which intestine is longer ?
Small
DAILY DOUBLE Which organ produces bile and what is its role in digestion?
The liver produces bile, to emulsify fats, aiding in their digestion.
Which organ is primarily responsible for nutrient absorption?
The small intestine is the main site for nutrient absorption, where most of the digestion and absorption of food takes place.
What is the function of the small intestines?
Absorbs all the nutrients and sends it through to the rest of the body.
What is chemical digestion?
The breaking down of food into smaller pieces by chemicals like saliva or enzymes
A nutrient that your body can synthesize enough of on its own
nonessential nutrient
This give 2.25 times more energy per unit than CHO or proteins.
Fat or lipid
What is the main role of the gallbladder in the digestive process?
To store bile
What is the main function of the large intestines?
Absorbs water and compacts the waste
Name 4 functions of the digestive system
Ingestion,
Digestion of Food
Absorption of nutrients & water
Excretion of waste
Some absorption of water, electrolytes, and other nutrients. Is the transition into the large intestine
Ileum
Denatures proteins within the stomach
Pepsin
DAILY DOUBLE
What role does the pancreas play in digestion?
It secretes insulin to aid in the digestion of sugar.
Where does both mechanical and chemical digestion take place?
Stomach and mouth
What are the structures made up of epithelial cells in the small intestine that absorb nutrients
Villi
What is the squeezing wave like movement of the food in the GI tract called?
Peristalsis
they are too big to diffuse across cell membranes alone
What is in saliva that begins the breakdown of carbohydrates?
Amylase