Digestive Flashcards

1
Q

Breaks down food you eat into nutrients needed for metabolic processes and rids body of materials that cannot be used

A

Digestive system

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2
Q

Performs whole digestive process/ also called GI tract

A

Alimentary canal

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3
Q

Mouth, pharynx, esophagus, stomach, small and large Intestines

A

Organs of alimentary system

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4
Q

what helps to regulate the
mobility and secretory activity
of GI tract organs.

A

submucosal & myenteric

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5
Q

moist membrane
innermost layer
lines the hollow cavity- lumen
consist of:
-surface ephithelium
-smooth muscle layer

A

Mucosa

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6
Q

soft connective tissue
contains:
-blood & lymphatic vessels
-nerve endings
-mucosa-associated lymphoid tissue (MALT)

A

Submucosa

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7
Q

made up of smooth muscle cells
consists of:
-inner circular layer
-outer longitudinal layer

A

Muscularis externa

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8
Q

outermost layer
has a single layer of flat serous fluid
producing cells
pair/ half of the visceral peritoneum

A

serosa

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9
Q

oral cavity

A

Mouth

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10
Q

passageway of food, fluid, air

A

Pharynx

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11
Q

gullet

A

Esophagus

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12
Q

C-shaped organ

A

Stomach

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13
Q

Four main layers of the stomach

A

Mucosa, submucosa, serosa, muscularis externa

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14
Q

Primary site for digestion and
nutrient absorption.

A

Small Intestines

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15
Q

3 subdivisions of small intestine?

A

Duodenum, jejunum, ileum

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16
Q

Starting point of the large intestine/ connected to small intestine

17
Q

The largest part with four
sections, ascending, transverse,
descending, and sigmoid colon;
absorbs water and salts.

18
Q

Stores feces before
elimination.

19
Q

The final opening where
waste exits the body.

20
Q

Absorbs water and
electrolytes from undigested
food.

A

Large intestine

21
Q

support the digestive system by
producing and storing substances
that help break down food.

A

Accessory digestive organs

22
Q

Teeth and Tongue
Salivary Glands
Pancreas
Liver
Gallbladder

A

Accessory organs

23
Q

GASTROINTESTINAL
PROCESSES

A

Ingestion
Propulsion
Mechanical Breakdown
Digestion
Absorption
Defecation

24
Q

Food is actively and voluntarily placed into
the mouth.
This is the first step in the digestive
process.

25
Food moves between digestive organs through peristalsis (involuntary muscle contractions). Peristalsis: Alternating muscle contractions squeeze food along the tract. Segmentation: Mixes food with digestive juices by moving it back and forth (mechanical digestion).
PROPULSION
26
27
Breakdown of large food molecules into building blocks by enzymes.
Digestion
28
Carbohydrates are broken into simple sugars Proteins are broken down into amino acids Fats are broken down into glycerol and fatty acids
Hydrolysis
29
Nutrients enter mucosal cells via active or passive transport.
Absorpstion
30
Elimination of indigestible residues from the gastrointesitnal tract
Defacation
31
MAJOR NUTRIENTS
carbohydrates, lipids, and proteins.
32
MINOR NUTRIENTS
vitamins and minerals
33
Chemical reactions that occur within living organisms to maintain life
Metabolism
34
2 COMPONENTS OF METABOLISM
Anabolism and catabolism