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Histology > GIT ~ Histology > Flashcards

GIT ~ Histology Flashcards

1
Q

4 layer of GI Tract From Inside to Outside

A

Mucosa
Sub-Mucosa
Muscularis Externa
Serosa/Adventitia

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2
Q

Lip to Esophagus ________________ Epithelium

A

Stratified Sqaumous Non Keratinized Epithelium

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3
Q

3 Layers of Mucosa

A

Epithelial Layer
Lamina Propria
Muscularis Interna

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4
Q

Hard Palate & Gingiva lined by __________________ Epithelium

A

Para-keratinised Stratified Sqaumous Epithelium ~ has Nucleus

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5
Q

Difference between Keratinised and Para-Keratinised Epithelium

A

In para-keratinised Nucleus is Present whereas in keratinised ~ absent

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6
Q

Epithelium in

Stomach ~

Small Intestine ~

A

Stomach ~ Simple Columnar Epithelium

Small Intestine ~ Simple Columnar with Microvilli

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7
Q

Epithelium in Large Intestine Upto Pectinate Line ~

A

Simple Columnar Epithelium

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8
Q

Epithelium in Large Intestine from Pectinate Line to Hilton’s line

A

Stratified Squamous Non Keratinised Epithelium

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9
Q

Epithelium in anal canal Below Hilton’s Line

A

Stratified Squamous Keratinised Epithelium

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10
Q

GALT present in which layer

A

Lamina Propria

In the Ileum Payer’s Patches Present in Lamina Propria

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11
Q

Pyloric and Cardiac Glands of Stomach present in which layer

A

Lamina Propria

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12
Q

Lamina Propria Contains

A

Connective Tissues

GALT

Intestinal Gland

Pyloric and Cardiac Glands of Stomach

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13
Q

Strongest layer of GIT

A

SubMucosa

Contains;

Meissner’s Plexus

Bruner’s Gland (Duodenum)
Esophageal Gland

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14
Q

Bruner’s Gland in Duodenum and

Esophageal Gland present in which layer

A

Sub Mucosa

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15
Q

Muscularis Externa Of Esophagus

Upper 1/3
Middle 1/3
Lower 1/3

A

Upper 1/3 ~ Skeletal Muscle
Middle 1/3 ~ Skeletal + Smooth
Lower 1/3 ~ Smooth Muscle

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16
Q

Auerbach Plexus present in which layer

A

Muscularis Externa

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17
Q

Parts of Gastric Gland

A

Neck ~ Mucous Neck Cells
Body ~ Parietal / Oxyntic Cells
Fundus ~ Chief / Peptic Cells

18
Q

Parietal / Oxyntic Cells Secretes

A

HCl and Intrinsic Factor

Eosinophilic cells with Round nucleus

19
Q

Argentaffin cells found in which part of Gastric Gland

A

Fundus of Gland

Neuroendocrine Cell ~ Secrets Gastrin Hormone

Stained by Silver Salts

20
Q

Which part of the stomach has all cells

A

Fundus of the Stomach

All cells

Mucous neck cell
Argentaffin cell
Parietal cell
Chief cell

21
Q

Cells in the Fundus of gland

A

Chief cells

Argentaffin cells

22
Q

Basophilic cells which secrets pepsinogen

A

Chief Cells

23
Q

Cells present in Crypts of Liberkuhn of small Intestine

A

Stem Cells ~ Produce Enterocytes and Goblet Cells

Peneth Cells

M Cell

24
Q

Cells in Crypt of Liberkuhn migrate from the base towards apex

A

Enterocytes and Goblet Cells

25
Q

Cells in Crypt of Liberkuhn migrate from Apex towards the Base

A

Peneth Cells

Contains Eosinophilic Granules in Apex (apical eosinophilia)

Contain Lysosome
Phagocytic in Function

26
Q

Antigen Presenting Cells in Crypt of Liberkuhn

A

M Cells

27
Q

Part of Duodenum has More No of Brunner’s Gland

A

Proximal Part of Duodenum

submucosa ~

Has more no of Brunner’s gland ~ to neutralise the highly acidic incoming stomach content

28
Q

Mucous neck cells absent in small intestine

Correct/Incorrect

A

Correct

Instead Mucous Neck Cell it has Goblet Cells in small and large intestine

29
Q

Shape of hepatic lobule

A

Hexagonal Shape

30
Q

In the centre of hepatic lobule we have

A

Central Vein

31
Q

At the corner of Hepatic lobule we have

A

Portal Triad ~
consists of Portal Vein
Hepatic Artery
Bile Duct

32
Q

Blood from the Portal Vein and Hepatic Artery Drains into

A

Sinusoids ~ Central Vein ~ Hepatic Venules ~ Hepatic Vein ~ Inferior Vena Cava

33
Q

Kupffer cells present in the

A

Sinusoids

34
Q

Space between Endothelium of Sinusoids and Hepatocytes

A

Space of Disse (Peri-Sinusoidal Space)

Exchange of metabolite and nutritive substance between liver and blood

Has Stellate cells

35
Q

Stellate cells present in

A

Space of Disse

36
Q

PeriPortal space is called

A

Space of Mall

37
Q

Portal Lobule has

A

Central vein in Periphery

Portal Vein in the Centre

Triangular in shape

Signifies the direction of bile flow (towards Portal Vein)

38
Q

Zone of Hepatic Acinus Closed to Portal Canal

A

Zone l ~ Highly Vascular

39
Q

What is Hepatic Acinus

A

Space between adjacent Hepatocytes supplied by Branches of Portal Vein and Hepatic Artery

Diamond Shaped

Has 3 Zones

40
Q

Zone Prone to Hypoxic Injury

A

Zone lll

41
Q

Shape of

Hepatic Lobule ~
Portal Lobule ~
Hepatic Acinus ~

A

Hepatic Lobule ~ Hexagonal
Portal Lobule ~ Triangular
Hepatic Acinus ~ Diamond

Histology (9 decks)

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