7.4 Alimentary Canal

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25 Terms

1
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Define ingestion.

taking of substances into body via the mouth

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Define mechanical digestion.

breakdown of food into smaller pieces w/o chemical change to food molecules

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Define chemical digestion.

breakdown of large insoluble molecules into smaller soluble molecules

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Define absorption.

movement of small food molecules & ions through wall of intestine into blood

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Define assimilation.

movement of digested food molecules into cells where they are used & becomes part of cells

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Define egestion.

passing out of food not digested/absorbed as faeces, through the anus

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Pathway of FOOD in the alimentary canal:
M__ → s__ g__ → o__ → s__ → d__ + i__ → c__ + r__ → a__

mouth, salivary glands, oesophagus, stomach, duodenum, ileum, colon, rectum, anus

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Where does digestion occur?

mouth, stomach, small intestine

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Where are digestive enzymes produced?

in the pancreas

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The small intestine is made up of

duodenum + ileum

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The large intestine is made up of

colon + rectum

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Where does absorption occur?

in the small intestines

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What is the star?

mouth

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What is the star?

tongue

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What is the star?

salivary gland

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What is the star?

gall bladder

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What is the star?

liver

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What is the star?

pancreas

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What is the star?

colon

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What is the star?

anus

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What is the star?

rectum

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What is the star?

ileum

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What is the star?

duodenum

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What is the star?

stomach

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What is the star?

oesophagus