Digestion Flashcards

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1
Q

Digestion is a process by which our bodies

A

Absorb nutrients we need to stay alive from foods we consume

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2
Q

Nutrients are passed into the _ to wherever in the body they are needed

A

Bloodstream

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3
Q

Digestive system in adults is about _ ft

A

30

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4
Q

Digestive enzymes in _ begin process of chemically breaking down food

A

Saliva

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5
Q

Ball of masticated food called

A

Bolus

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6
Q

After chewing _ enters esophagus

A

Bolus

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7
Q

The epiglottis is a flap of cartilage that _

A

Covers the larynx as swallowed food passes to enter the esophagus

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8
Q

Location of epiglottis

A

Back of throat behind tongue

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9
Q

Esophagus is a large muscular tube that extends from epiglottis to

A

Stomach

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10
Q

Esophagus muscles move _ down pipe to stomach

A

Bolus

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11
Q

Muscular ring acting as stomach gateway called the

A

Lower esophageal sphincter

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12
Q

If lower esophageal sphincter doesn’t close properly _ results

A

Acid reflux

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13
Q

Stomach releases _ that break down food that enters

A

Digestive enzymes

Digestive acids

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14
Q

In stomach _ contract and churn food

A

Gut muscles

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15
Q

The churning of food helps _ (2)

A

Chemicals break up

Acid kill off unwanted microbes in food

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16
Q

The churning process also allows _ to be released

A

The satiety hormone, leptin

17
Q

The _ hormone is released by stomach when it is empty

A

Hunger hormone, ghrelin

18
Q

The stomach turns food into soap like consistency _

A

Chyme

19
Q

Chyme is created for

A

Small intestines to be able to process

20
Q

Majority of nutrients absorption takes place in

A

Small intestine

21
Q

Small intestine is a _ foot long section of digestive tract

A

23

22
Q

Small intestine covered with multiple _ that absorb nutrients from chyme (2)

A

Tiny villi

Microvilli

23
Q

Absorption of chyme through tiny and microvilli process called

A

Diffusion

24
Q

After nutrients from chyme absorbed in tiny villi and microvilli through diffusion

A

They are passed into the bloodstream

25
Q

Food spends _ hours in small intestines (range)

A

2-6

26
Q

While in small intestines, food is _

A

Broken down by digestive enzymes so diffusion can take place

27
Q

Some digestive enzymes are supplied by

A

Pancreas

28
Q

Pancreas releases hormones to help _ as they rise in response to eating a meal

A

Regulate blood sugar levels

29
Q

The _ also releases bile into the small intestine to further ain in digestion

A

Gallbladder