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HISTOLOGY FINALS > Digestive system > Flashcards

Digestive system Flashcards

1
Q

Lining epithelium of ORAL CAVITY

A

Stratified squamous non-cornified

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2
Q

Organs found in oral cavity

A

o Hard palate
o Gingivae
o Filiform papillae of the tongue

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3
Q

Submucosa of ORAL CAVITY

A

lips, cheeks and soft palate

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4
Q

Mucosa of Hard palate

A

▪ No submucosa
▪ Mucosa is firmly bound to the
periosteum

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5
Q

Subdivisions of ORAL CAVITY

A

o Oral cavity proper
o Oral vestibule

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6
Q

The only communication between the oral
vestibule and the oral cavity proper

A

Retromolar space

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7
Q

UPPER AND LOWER LIPS:
What is the LE of skin:

A

stratified squamous cornified epithelium

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8
Q

Submucosa of LIPS

A

containing tubulo-alveolar, small salivary
glands called labial glands

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9
Q

Medical term for lips

A

Labial

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10
Q

Mucosa of LIPS

A

Stratified squamous non-cornified epithelium

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11
Q

CHEEKS: LE of the skin

A

Stratified squamous cornified epithelium

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12
Q

Superficial fascia

A

– with buccal pad of fat

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13
Q

Submucosa of CHEEKS

A

buccal glands (mixed secretion)

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14
Q

Mucosa of CHEEKS

A

– lined by SSNC (stratified squamous non cornified)

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15
Q

Upper surface of TOUNGE contains ________

A

Lingual Papillae

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16
Q

What are the 4 different parts of Papillae?

A

Filiform, Fungiform, Folliate, Circumvallate

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17
Q

Filiform

A

Most numerous

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18
Q

Fungiform

A

Constricted base, expanded surface

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19
Q

Folliate

A

Leaf-like; rudimentary

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20
Q

Circumvallate

A

Largest and contain taste buds Tongue

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21
Q

Undersurface of TOUNGE contains _________

A

salivary glands

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22
Q

2 PARTS OF LINGUAL GLANDS

A

Blandin and Nuhn AND Von-Ebners

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23
Q

Blandin and Nuhn

A

→ Anterior
→ Mucoserous (mixed type)

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24
Q

Von-Ebners

A

→ Posterior
→ Purely serous

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25
Q

LE of GUMS

A

Stratified squamous cornified

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26
Q

Mucosa of GUMS

A

Adherent to the mucoperichondrium or
mucoperiostum

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27
Q

2 TYPES OF TEETH

A

-Temporary AND Permanent

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28
Q

→ Deciduous or milk teeth
→ 20 in number
→ Erupt from the 6th month up to the 6th year

A

Temporary teeth

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29
Q

→ 32 in number
→ Erupt from the 6th year up to 25th year

A

Permanent teeth

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30
Q

parts of teeth: hardest structure of the body secreted by ameloblasts

A

Enamel

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31
Q

formed by odontoblasts

A

Dentin

32
Q

→ covers the dentin of the root
→ Secreted by cementocytes

A

Cementum

33
Q

→ serve to attach the root of the tooth to the
alveolar socke.
→ Dense connective tissue

A

Periodontal
membrane

34
Q

→ contains BV’s, N’s, fibroblasts, histiocytes,
and LV’s

A

Pulp cavity

35
Q

ALIMENTARY TRACT
How many layers are there in the Alimentary tract?

A

4 layers in the whole stretch of the digestive tract:

36
Q

Mucosa (ALIMENTARY TRACT)

A

o Epithelium
o Lamina propria
o Muscularis
o Muscularis mucosae

37
Q

Submucosa (ALIMENTARY TRACT)

A

o Submucosal gland
o Blood vessel
o Submucosal nerve
plexus(Meissner’s plexuses) – for secretion

38
Q

Tunica mucularis or Muscularis
externa

A

o Inner circular layer
o Myenteric nerve plexus (for motor
or peristalsis – movement of your
food along the digestive tract)
o Outer longitudinal layer

39
Q

The 2 Organs’ glands that are at Lamina propia and submucosa

A
  • Esophagus and Duodenum
40
Q

MUCOSA of ESOPHAGUS

A

LE: SSNK (Stratified squamous non-keratinized/cornified)

41
Q

Mucosa: Lamina propia of ESOPHAGUS

A

▪ LCT
▪ Superficial esophageal glands

42
Q

Mucosa: Muscularis mucosa of ESOPHAGUS

A

Smooth muscle

43
Q

In submucosa, it has _______ for secretion

A

Meissner’s plexuses

44
Q

characteristic feature of the esophagus

A

Deep esophageal glands/esophageal glands
proper

45
Q

Tunica muscularis of ESOPHAGUS

A

ICOL (Inner circular and outer longitudinal layer)

46
Q

what muscle in Upper 1/3?

A

skeletal muscle

47
Q

what muscle in Middle 1/3?

A

smooth and skeletal muscle

48
Q

what muscle in Lower 1/3?

A

smooth muscle

49
Q

TUNINCA MUSUCLARIS:
Myenteric (Auerbach’s) plexuses function?

A

(for peristaltic movement, motor or peristalsis)

50
Q

STOMACH: What is te sublayer in mucosa?

A

Rugae, LE, LP, MM

51
Q

LE of STOMACH:

A

Simple columnar without goblet cells (GC)

52
Q

True or false: NO glands found in submucosa in STOMACH

A

TRUE

53
Q

Tunica muscularis (layer)

A

Inner Oblique (IO)
Middle circular (MC)
Outer longitudinal (OL)

54
Q

→ Large round or pyramidal cells with one or sometimes 2 central
round nucleus
→ Eosinophilic cytoplasm
→ Secretion:
o Hydrochloric acid
o Intrinsic factor

A

Parietal (oxyntic) cells

55
Q

intrinsic factor is for Vitamin ____

A

Vitamin b12

56
Q

→ Most numerous
→ Predominates at the lower regions of the gastric glands
→ Show abundant RER and secretory granules
→ Secretion: PEPSINOGEN
→ Produces GASTRIC LIPASES

A

Peptic/chief/zymogenic cells

57
Q

→ Most proximal to esophagus
→ Simple tubular glands (some compound
tubular glands)

A

Cardiac Glands

58
Q

→ Most numerous type of gland
→ Simple branched tubular glands

A

Fundic Glands

59
Q

→ Near the small intestine
→ Simple branched tubular glands

A

Pyloric Glands

60
Q

LE of SMALL INTESTINES

A

: Simple columnar with goblet cells

61
Q

TRUE OR FALSE: Esophagus down to large
intestine, it is ICOL EXCEPT in the
stomach which contains IOMCOL

A

TRUE

62
Q

Also known as enterocytes and
PARENCHYMA OF SMALL INTESTINE

A

Columnar cells

63
Q

Most numerous cells in small intestine

A

Enterocytes

64
Q

Shortest, the widest, and the most fixed part

A

DUODENUM

65
Q

Brunner’s glands or duodenal glands of
Brunner are found at the ________

A

Submucosa

66
Q

Parenchyma of Large intestine

A

Goblet cells

67
Q

LE of Large intestines

A

Simple columnar with goblet cells

68
Q

LE of Appendix:

A

Simple columnar with goblet cells

69
Q

LP of Appendix:

A

dense and nodular lymphatic tissues

70
Q

LP of Large intestines:

A

Loose connective with
intestinal glands

71
Q

Tunica serosa of Appendix:

A

Peritoneum lined with mesothelium

72
Q

LE of Rectum

A

LE: simple columnar with plenty of GC

73
Q

Give parenchyma and Lining epithelium: STOMACH

A

P: Parietal cells
LE: Simple columnar without GC

74
Q

Give parenchyma and Lining epithelium: SMALL INTESTINES

A

P:Enterocytes
LE: Simple columnar
with GC

75
Q

Give parenchyma and Lining epithelium of Large intestines

A

P: Goblet cells
LE: Simple columnar
with GC

HISTOLOGY FINALS (3 decks)

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