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Health 2 > Digestive System > Flashcards

Digestive System Flashcards

0
Q

What is absorption?

A

The passage of digested food from the digestive tract into the circulatory system

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1
Q

What is digestion?

A

Mechanical & chemical breakdown of foods for the use by the body’s cells

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2
Q

What is elimination?

A

The expulsion of Undigested food or body wastes

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3
Q

What is mastication?

A

The process or chewing- prepares foods to be swallowed

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4
Q

What are salivary glands!

A

Secrete saliva, which contains an enzyme that starts the digestion of carbohydrates
Lubricates food making it easier to swallow

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5
Q

What does the tongue do?

A

Forms food into a ball to prepare for swallowing. Food is then forced into the pharynx

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6
Q

What is the esophagus?

A

Muscular tube that extends from the pharynx to the stomach

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7
Q

What is peristalsis?

A

A seeks of involuntary muscular contractions that move food through the esophagus

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8
Q

What is the stomach?

A

Hollow saclike organ enclosed in a muscular wall

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9
Q

Stomach

A

Continues the break down of food
Storage place for food
Mixes together food & gastric juices

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10
Q

What are gastric juices?

A

Secretions from the stomach lining that contain pepsin & hydrochloric acid

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11
Q

What is pepsin?

A

Enzyme that breaks down protein

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12
Q

What is hydrochloric acid?

A

Kills bacteria

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13
Q

What does the stomach do?

A

Churns together food & gastric juices to produce chyme

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14
Q

What is chyme?

A

A creamy fluid mixture of food & gastric juices

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15
Q

What is the small intestine?

A

The major part of digestion & absorption occurs here
20-23 ft in length
Lined with millions of finger like projections callee villi.

16
Q

What does peristalsis do to chyme?

A

Moves chyme through the small intestine (takes 3-5 hours)

17
Q

What do villi do?

A

Absorb digested food particles

18
Q

What do unabsorbed materials do?

A

Enter into the large intestine

19
Q

What are the main functions of the large intestine?

A

To absorb water & eliminate Undigested food

20
Q

What does the liver do?

A

Regulates the levels of most chemicals in your body

Clears blood of poisonous substances & excretes them in bile

21
Q

What is bile?

A

A yellowish green bitter fluid important in the breakdown of fats

22
Q

What is the gallbladder?

A

Located underneath the liver. It stores bile then releases it into the small intestine

23
Q

What does the pancreas do?

A

Produces 3 digestive enzymes
Trypsin- digest proteins
Amylase- digest carbohydrates
Lipase- digest fats

Health 2 (7 decks)

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