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Health Science 20 > Unit 8- Digestion > Flashcards

Unit 8- Digestion Flashcards

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Biology 101 flashcards
1
Q

Ingestion

A

Entry of food through the mouth

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2
Q

Mechanical Processing

A

Physical manipulation of solid food by teeth, mixing by tongue

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3
Q

Secretion

A

Release of water, acids, enzymes, etc from lining of tract and accessory organs

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4
Q

Absorption

A

Movement of nutrients from the digestive system to the blood

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5
Q

What is the Pharynx?

A

Throat

Transmits solid food, liquid, air

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6
Q

What is the esophagus?

A

Muscular tube about 0.8 inches in diameter that connects pharynx to stomach

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7
Q

What is rugae?

A

Accordion like folds in stomach muscle wall that allow expansion to almost 0.5 gallons

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8
Q

What is peristalsis?

A

The wave like action of food being pushed down the esophagus

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9
Q

What is emulsification?

A

When bile turns big fat particles into smaller fat particles

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10
Q

What two liquids does the stomach hold to break down food?

A

Pepsin and Hydrochloric acid

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11
Q

What substance breaks down sugar in the mouth?

A

Saliva Amuglase

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12
Q

What is the valve that enters the stomach and the valve that exits the stomach called?

A

Enters- Cardiac Valve

Exits- Pyloric Sphincter

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13
Q

What three organs connect to the duodenum?

A

Pancreas, Liver, Gall bladder

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14
Q

What are the 3 functions of the stomach?

A
  1. Secretes gastric juices
  2. Secretes mucus
  3. Absorption of some substances (alcohol)
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14
Q

What are the 4 functions of the liver? (The largest organ)

A
  1. Regulates body metabolism
  2. Detoxifies alcohol
  3. Is a large reservoir of blood
  4. Produces bile which aids in digestion of fat
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15
Q

What is the function of the small intestine?

A

Absorption or diffusion of nutrients

16
Q

What are the 3 regions of the small intestine?

A

Duodenum
Jejenum
Ileum

17
Q

What are the finger like structure in the inside of the the small intestine?

A

Villi

18
Q

What is in the centre of a villus and what does it do

A

The lacteal is in the middle and it absorbs fats

19
Q

What part of the villi absorbs the nutrients from the chyme via diffusion?

A

Capillaries

20
Q

What is the function of the large intestine?

A

Water re-absorption

21
Q

What is the first attachment of the large intestine that the appendix is attached to?

A

Cecum

Health Science 20 (7 decks)

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