Digestive system Flashcards

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1
Q

What is digestion

A

Digestion is the breakdown of large molecules in food into smaller molecules so that they can be absorbed into the blood.

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2
Q

Why is digestion important

A

Digestion is important to get the nutrients needed for energy growth and repair.

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3
Q

How does the mouth contribute?

A

The teeth and saliva in the mouth breakdown the food into smaller pieces . Enzymes in the saliva break down the down the starch.

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4
Q

How does the oesophagus contribute.

A

Once you swallow the food travels down the oesophagus, with the help of the muscles pushing on it, and ends up in the stomach.

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5
Q

How does the stomach contribute

A

The food is churned in the stomach and acids and enzyme rich juices are released to break down the food down further creating a substance called chyme.

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6
Q

How does the small intestine contribute?

A

In the small intestine , bile is mixed with the chyme to provide the correct ph for the enzymes and to emulsify the fats.Useful nutrients are absorbed into the bloodstream.

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7
Q

How does the large intestine contribute.

A

In the large intestine, any leftover water is absorbed into the body leaving the uk digested food.

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8
Q

How does the rectum contribute?

A

The waste is stored in the rectum and later exits the anus.

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