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Science_08 > Digestive System > Flashcards

Digestive System Flashcards

1
Q

What is digestion?

A

The breaking down of food so nutrients can be absorbed into the blood and carried to your cells

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2
Q

What are the 13 parts of the digestive system

A

Mouth
Salivary Glands
Epiglottis
Esophagus
Stomach
Duodenum
Pancreas
Liver
Gall Bladder
Small Intestine
Large Intestine
Rectum
Anus

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3
Q

Describe the function of the mouth

A

Where food enters the body
food is broken down by chewing and salivary enzymes

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4
Q

Describe the function of the Salivary Glands

A

Produces around 1.5L of saliva per day
Saliva contains enzymes that begin breaking down starch

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5
Q

Describe the function of the epiglottis

A

A flap in the throat that stops food and water from entering the trachea and lungs

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6
Q

Describe the function of the Esophagus

A

Long tube between the mouth and stomach
Uses rhythmic, involuntary muscle contractions (peristalsis)
Forces food from the throat to the stomach

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7
Q

Describe the function of the Stomach

A

Food is churned in an acid bath
When full, can hold between 2-4L of food and water

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8
Q

Describe the function of the Duodenum

A

First part of the small intestine
Where digested food enters the small intestine

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9
Q

Describe the function of the Pancreas

A

Produces enzymes and pancreatic juices
Digests carbohydrates, fats and protein
Juice neutralises the stomach acid

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10
Q

Describe the function of the Liver

A

Filters toxins from the blood
Makes bile and some blood proteins
Stores vitamin A, D and Iron
Largest internal organ

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11
Q

Describe the function of the Gall Bladder

A

Bile is stored and released from here into the small intestine

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12
Q

Describe the function of the Small Intestine

A

Most digestion and absorption of food occurs here (Food is in molecular form)
Food goes through after leaving the stomach

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13
Q

Describe the function of the Large Intestine

A

Absorbs remaining water, salts, vitamins and sugars (makes it a bit more solid)
Undigested food goes here from the small intestine

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14
Q

Describe the function of the Rectum

A

Stores poop
Lower part of the large intestine

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15
Q

Describe the function of the Anus

A

Where poop exits the body

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16
Q

What are the 4 parts of digestion

A

Ingestion
Mechanical Digestion
Chemical Digestion
Absorption

17
Q

What is ingestion

A

Taking food into the body
When you put food in your mouth

18
Q

What is Mechanical Digestion

A

Physical breakdown of food
- chewing + churning stomach
Allows for greater surface area of food particles, makes the enzymes work faster

19
Q

What is Absorption

A

Some substances are absorbed through the lining of the stomach and small intestine

Science_08 (6 decks)

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