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HISTOLOGY FINALS > Digestive system > Flashcards

Digestive system Flashcards

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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
LE of GUMS
Stratified squamous cornified
26
Mucosa of GUMS
Adherent to the mucoperichondrium or mucoperiostum
27
2 TYPES OF TEETH
-Temporary AND Permanent
28
→ Deciduous or milk teeth → 20 in number → Erupt from the 6th month up to the 6th year
Temporary teeth
29
→ 32 in number → Erupt from the 6th year up to 25th year
Permanent teeth
30
parts of teeth: hardest structure of the body secreted by ameloblasts
Enamel
31
formed by odontoblasts
Dentin
32
→ covers the dentin of the root → Secreted by cementocytes
Cementum
33
→ serve to attach the root of the tooth to the alveolar socke. → Dense connective tissue
Periodontal membrane
34
→ contains BV’s, N’s, fibroblasts, histiocytes, and LV’s
Pulp cavity
35
ALIMENTARY TRACT How many layers are there in the Alimentary tract?
4 layers in the whole stretch of the digestive tract:
36
Mucosa (ALIMENTARY TRACT)
o Epithelium o Lamina propria o Muscularis o Muscularis mucosae
37
Submucosa (ALIMENTARY TRACT)
o Submucosal gland o Blood vessel o Submucosal nerve plexus(Meissner’s plexuses) – for secretion
38
Tunica mucularis or Muscularis externa
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
The 2 Organs' glands that are at Lamina propia and submucosa
* Esophagus and Duodenum
40
MUCOSA of ESOPHAGUS
LE: SSNK (Stratified squamous non-keratinized/cornified)
41
Mucosa: Lamina propia of ESOPHAGUS
▪ LCT ▪ Superficial esophageal glands
42
Mucosa: Muscularis mucosa of ESOPHAGUS
Smooth muscle
43
In submucosa, it has _______ for secretion
Meissner’s plexuses
44
characteristic feature of the esophagus
Deep esophageal glands/esophageal glands proper
45
Tunica muscularis of ESOPHAGUS
ICOL (Inner circular and outer longitudinal layer)
46
what muscle in Upper 1/3?
skeletal muscle
47
what muscle in Middle 1/3?
smooth and skeletal muscle
48
what muscle in Lower 1/3?
smooth muscle
49
TUNINCA MUSUCLARIS: Myenteric (Auerbach’s) plexuses function?
(for peristaltic movement, motor or peristalsis)
50
STOMACH: What is te sublayer in mucosa?
Rugae, LE, LP, MM
51
LE of STOMACH:
Simple columnar without goblet cells (GC)
52
True or false: NO glands found in submucosa in STOMACH
TRUE
53
Tunica muscularis (layer)
Inner Oblique (IO) Middle circular (MC) Outer longitudinal (OL)
54
→ Large round or pyramidal cells with one or sometimes 2 central round nucleus → Eosinophilic cytoplasm → Secretion: o Hydrochloric acid o Intrinsic factor
Parietal (oxyntic) cells
55
intrinsic factor is for Vitamin ____
Vitamin b12
56
→ Most numerous → Predominates at the lower regions of the gastric glands → Show abundant RER and secretory granules → Secretion: PEPSINOGEN → Produces GASTRIC LIPASES
Peptic/chief/zymogenic cells
57
→ Most proximal to esophagus → Simple tubular glands (some compound tubular glands)
Cardiac Glands
58
→ Most numerous type of gland → Simple branched tubular glands
Fundic Glands
59
→ Near the small intestine → Simple branched tubular glands
Pyloric Glands
60
LE of SMALL INTESTINES
: Simple columnar with goblet cells
61
TRUE OR FALSE: Esophagus down to large intestine, it is ICOL EXCEPT in the stomach which contains IOMCOL
TRUE
62
Also known as enterocytes and PARENCHYMA OF SMALL INTESTINE
Columnar cells
63
Most numerous cells in small intestine
Enterocytes
64
Shortest, the widest, and the most fixed part
DUODENUM
65
Brunner’s glands or duodenal glands of Brunner are found at the ________
Submucosa
66
Parenchyma of Large intestine
Goblet cells
67
LE of Large intestines
Simple columnar with goblet cells
68
LE of Appendix:
Simple columnar with goblet cells
69
LP of Appendix:
dense and nodular lymphatic tissues
70
LP of Large intestines:
Loose connective with intestinal glands
71
Tunica serosa of Appendix:
Peritoneum lined with mesothelium
72
LE of Rectum
LE: simple columnar with plenty of GC
73
Give parenchyma and Lining epithelium: STOMACH
P: Parietal cells LE: Simple columnar without GC
74
Give parenchyma and Lining epithelium: SMALL INTESTINES
P:Enterocytes LE: Simple columnar with GC
75
Give parenchyma and Lining epithelium of Large intestines
P: Goblet cells LE: Simple columnar with GC

HISTOLOGY FINALS (3 decks)

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