Human Digestive System Flashcards

uno!!

1
Q

What is the system of the body that mechanically and chemically breaks down food?

A

Digestive System

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2
Q

How many hours does it take to completely break down food?

A

12 to 24 hours

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3
Q

How are the digestive organs divided?

A

gastrointestinal tract
accessory organs

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4
Q

What are the other terms for Gastrointestinal tract?

A

alimentary canal
digestive tract

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5
Q

What is the continuous tube running from the mouth to the anus?

A

gastrointestinal tract

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6
Q

How long is the gastrointestinal tract?

A

9m (30ft) in length

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7
Q

digests and absorbs food

A

Gastrointestinal tract

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8
Q

What are the organs included in GI tract?

A

mouth
pharynx
esophagus
stomach
small intestine
large intestine

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9
Q

What are the organs included in Accessory Digestive Organs?

A

teeth
tongue
gallbladder
salivary glands
liver
pancreas

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10
Q

functions in secretion of lubricating fluid containing enzymes that break down carbohydrates

A

salivary glands

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11
Q

functions in mechanical processing, moistening, mixing with salivary secretions

A

oral cavity, teeth, tongue

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12
Q

the pharyngeal muscles propel materials into the esophagus

A

pharynx

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13
Q

transport of materials to the stomach

A

esophagus

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14
Q

secretion of bile (important for lipid digestion), storage of nutrients, and has many other vital functions

A

liver

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15
Q

functions in the chemical breakdown of materials via acid and enzymes

A

stomach

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16
Q

It has mechanical processing through muscular contractions

A

stomach

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17
Q

storage and concentration of bile

A

gallbladder

18
Q

It functions when exocrine cells secrete buffers and digestive enzymes and endocrine cells secrete hormones

A

pancreas

19
Q

responsible for enzymatic digestion and absorption of water, organic substrates, vitamins, and ions

A

small intestine

20
Q

responsible for dehydration and compaction of indigestible materials in preparation for elimination

A

large intestine

21
Q

What are the organs in the digestive tract that are made up of the same 4 basic tissue layers?

A

esophagus to large intestine

22
Q

What are the 4 basic tissue layers in esophagus to large intestine?

A

Mucosa (mucous membrane)
submucosa
muscularis externa
adventitia or serosa

23
Q

it is the innermost layer of the 4 basic tissue layers

A

mucosa

24
Q

it lines the lumen of the digestive tract

A

mucosa

25
Q

made up of epithelium, connective tissue, and a very thin layer of smooth muscle

A

mucosa

26
Q

it has many blood and lymphatic vessels to absorb nutrients

A

mucosa

27
Q

it has lots of lymphatic nodules to fight pathogens

A

mucosa

28
Q

it is made up of connective tissue and has lots of blood and lymphatic vessels that receive absorbed food molecules. It also has lymphatic tissue

A

submucosa

29
Q

it has a nerve plexus that regulate movements and secretions of the digestive tract

A

submucosa

30
Q

it has mucin-secreting glands in the esophagus and duodenum

A

submucosa

31
Q

secrete buffers and digestive enzymes in pancreas

A

exocrine cells

32
Q

secrete hormones in pancreas

A

endocrine cells

33
Q

regulate movements and secretions of digestive tract

A

nerve plexus of submucosa

34
Q

where does the submucosa contain mucin-secreting glands?

A

esophagus and duodenum

35
Q

t is made up of skeletal muscle or smooth muscle

A

muscularis externa

36
Q

it has a nerve plexus that controls the frequency and strength of contraction of smooth muscle

A

muscularis externa

37
Q

areolar connective tissue with dispersed collagen and elastic fibers

A

adventitia

38
Q

same as adventitia but covered by a visceral peritoneum

A

serosa

39
Q

controls the frequency and strength of contraction of smooth muscle

A

muscularis externa

40
Q

what part of muscularis externa contain skeletal muscle

A

mouth
pharynx
superior
middle parts of esophagus
anus

41
Q

what part of the muscularis externa contains smooth muscle

A

lower part of esophagus and the rest of GI tract contain 2 or 3 layers of smooth muscle