Chapter 5 Digestive System Flashcards by Erik Fontelera (2024)

1

Q

oral cavity

A

mouth

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2

Q

cheeks

A

the walls of the oval shaped cavity

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3

Q

lips

A

surrounds the opening of the cavity

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4

Q

hard palate

A

anterior portion of the roof of the mouth

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5

Q

soft palate

A

posterior portion of the mouth

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6

Q

uvula

A

small, soft tissue projection that hangs from the soft palate

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7

Q

rugae

A

irregular ridges in the mucous membrane covering the anterior portion of the hard palate

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8

Q

tongue

A

moves food around
- extends across the floor of the oral cavity
- muscles attach it to the lower jawbone

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9

Q

mastication

A

chewing

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10

Q

deglutition

A

swallowing

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11

Q

papillae

A

small raised areas on the tongue
- contains tastebuds

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12

Q

tonsils

A

masses of lymphatic tissue located in the depressions of the mucous membranes
- lie on both sides of oropharynx

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13

Q

gums

A

fleshy tissue surround the sockets of teeth

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14

Q

teeth

A

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15

Q

crown

A

shows above the gum line

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16

Q

root

A

lies within the bony tooth socket

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17

Q

enamel

A

protects the tooth

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18

A

primary material found in teeth
- covered by enamel in the crown
- covered by cementum in the root

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19

Q

cementum

A

covers, protects, and supports dentin in the root

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20

Q

periodontal membrane

A

surrounds the cementum and holds the tooth in place in the tooth socket

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21

Q

pulp

A

soft and delicate tissue fills the center of the tooth
- under the dentin

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22

Q

root canal
pulp canal

A

contains blood vessels, nerve endings, connective tissue, and lymphatic vessels

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23

Q

root canal therapy

A

when a disease or abscess occurs in the pulp canal

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24

Q

salivary glands

A

exocrine glands that produce saliva

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25

Q

saliva

A

lubricates the mouth
- has digestive enzymes and healing growth factors

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26

Q

enzymes

A

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27

Q

parotid gland

A

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28

Q

submandibular gland

A

below mandible

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29

Q

sublingual gland

A

below tongue

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30

Q

pharynx
throat

A

muscular tube line with mucus membrane
- 5 inches long
- for air to the trachea
- for food to the esophagus

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31

Q

esophagus

A

9-10 inch fibromuscular tube from pharynx (throat) to stomach
- where food travels to

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32

Q

epiglottis

A

flap tissue that covers the trachea so that food cannot enter and become lodged there

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33

Q

peristalsis

A

involuntary, progressive, rhythmic contraction of muscles in the wall of the esophagus

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34

Q

bolus

A

mass of food

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35

Q

stomach parts

A

fundus
body
antrum
sphincters

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36

Q

fundus

A

upper section of the stomach

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37

Q

body

A

middle section of the stomach

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38

Q

antrum

A

lower portion of the stomach

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39

Q

sphincter

A

rings of muscle that control the openings into and out of the stomach

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40

Q

lower esophageal sphincter (LES)

A

relaxes and contracts to move food from esophagus into the stomach

41

Q

pyloric sphincter

A

allows food to leave the stomach into the small intestine

42

Q

pepsin

A

enzyme to begin digesting proteins

43

Q

hydrochloric acid

A

digest protein and kills any bacteria remaining in food

44

Q

small intestine
small bowel

A

from pyloric sphincter to large intestines
- 20 feet long
3 part DJI

45

Q

duodenum

A

  • receives food from stomach
  • bile from liver and gallbladder
  • pancreatic juices from pancreas
    1 foot long

46

Q

bile

A

digestive juice made in the liver and stored in the gallbladder
- breaks up large fat globules

47

Q

liver

A

48

Q

gallbladder

A

49

Q

pancreas

A

50

Q

jejunum

A

2nd part of the small intestine
- 8 feet long

51

Q

iluem

A

11 feet long

52

Q

villi

A

microscopic projections that line the walls of the small intestines

53

Q

large intestine

A

ilieum to the anus

54

Q

cecum

A

first part of the large intestine

55

Q

appendix

A

blind pouch hanging the cecum

56

Q

colon

A

portion of the large intestine consisting of:
- ascending
- transverse
- descending
- sigmoid

57

Q

ascending colon

A

from cecum to undersuface of the liver (hepatic flexure)

58

Q

transverse colon

A

passes horizontally towards the spleen

59

Q

descending colon

A

near the splenic flexure and downward

60

Q

sigmoid colon

A

s-shaped

61

Q

rectum

A

rectum terminates into in the lower opening the gastrointestinal tract =

62

Q

anus

A

terminal end or opening of the digestive tract to outside the body

63

Q

feces

A

stools (solid)

64

Q

defecation

A

elimination of feces from the digestive tract through the anus

65

Q

liver

A

makes bile
stores sugar, iron, and vitamins
produces blood proteins
filters out toxins
destroys worn out RBC

66

Q

bile

A

contains cholest
- orange-black, sometimes green fluid

67

Q

bilirubin

A

pigment released by liver in bile

68

Q

jaundice

A

yellow discoloration of skin, whites of eyes, and mucous membranes

69

Q

hepatic duct

A

70

Q

cystic duct

A

71

Q

gallbladder

A

pear shaped sac under the liver that stores bile

72

Q

common bile duct
choledochus

A

carries bile from the liver and gallbladder to the duodenum

73

Q

pancreas

A

secretes pancreatic juices into the pancreatic ducts

74

Q

pancreatic duct

A

joins the common bile duct as it eneters duodenum

75

Q

duodenum

A

first part of small intestine
- duo- 2, den-10

76

Q

emulsification

A

where bile breaks apart large fate globules, creating more surface area so that enzymes from the pancreas can digest fats

77

Q

glucose

A

sugar

78

Q

glycogen

A

starch
- stored in the liver

79

Q

glycogenolysis

A

liver converts glycogen back to glucose

80

Q

gluconeagensis

A

liver converts proteins and fats into glucose

81

Q

portal vein

A

brings blood to the liver from the intestines

82

Q

exocrine

A

83

Q

endocrine

A

84

Q

amylase

A

secreted by the pancreas and salivary glands to digest starch

85

Q

lipase

A

digests fat

86

Q

protease

A

digest proteins

87

Q

insulin

A

  • needed to help release sugar from blood
  • acts as carrier to bring glucose into cells to be used as energy

88

Q

absoprtion

A

passage of materials through walls of the small intestine into the bloodstream

89

Q

amino acids

A

small building blocks of proteins
- released when protein are digested

90

Q

bowel

A

intestines

91

Q

canine teeth
cuspids

A

pointed, dog-like teeth

92

Q

enamel

A

hard, outermost layer of the tooth

93

Q

enzyme

A

chemical that speeds up a reaction between substances

94

Q

fatty acids

A

substances produced when fats are digested

95

Q

hydrochloric acid

A

substance produced in the stomach
- aids in digestion

96

Q

incisor

A

any one of the four front teeth in the dental arch

97

Q

molar tooth

A

3 large, flat teeth at the back of the mouth on each side

98

Q

triglycerides

A

fat molecules composed of three fatty acids

Chapter 5 Digestive System Flashcards by Erik Fontelera (2024)
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