Digestive System

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  • Created by: Nat1601
  • Created on: 15-11-15 14:34
What enzymes are found in the mouth and what are their functions?
Amylase - Breaks down starch Lysozyme breaks down bacterial cell walls
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Where does food travel down once leaving the mouth?
Pass the pharynx and down the oesophgus
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What is the epiglottis?
A flap of cartilage that closes over the trachea to prevent food going down the wrong hole
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What is the name of the band of muscle food passes on entering the stomach?
Cardiac valve, oesphageal sphincter
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How long does food stay in the stomach for?
5 hours
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What gastric juices are in the stomach
Hydrochloric acid, pepsin, rennin, mucus
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What does the enzyme pepsin do?
breaks down protein
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What does the enzyme rennin do?
clots milk
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What is the name of the band of muscle at the bottom of the stomach?
Pylonic sphincter
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What happens in the duodenum?
Neutralisation, Chyme is mixed with bicarbonate, juices from the gall bladder and pancreas are added.
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Where is fat adsorbed directly to in the duodenum?
lymphatic capilliaries, lymphatic system and then into the blood stream.
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Where is bile made, and where is it stored
Bile is made in the liver and stored in the gall bladder
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What does bile do?
emulsifies fat
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How long is the small intestine
6 metres long
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What is the inside of the small intestine covered in
millions of finger like projections called villi
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Parts of the small intestine are ....
Jejunum, Illeum
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Parts of the large intestine are ....
Caecum, ascending colon, transverse colon, descending colon, sigmoid colon, rectum
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what happens in the large intesting?
no digestion happens, remaining nutrients and water are removed and passed back into the body and faeces is created and stored in the rectum
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What is the Hepatic portal vein to do with?
Liver
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Other cards in this set

Card 2

Front

Where does food travel down once leaving the mouth?

Back

Pass the pharynx and down the oesophgus

Card 3

Front

What is the epiglottis?

Back

Preview of the front of card 3

Card 4

Front

What is the name of the band of muscle food passes on entering the stomach?

Back

Preview of the front of card 4

Card 5

Front

How long does food stay in the stomach for?

Back

Preview of the front of card 5
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