Digestive System - Module 13 Flashcards

Digestive System

1
Q

This system is responsible for digestion and absorption of nutrients, and excretion of waste products as feces

A

Digestive System

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2
Q

6 major organs of Digestive Tract

A

Mouth > Esophagus > Stomach > Small Intestine > Large Intestine > Anus

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3
Q

Histological Layer of Digestive System

A
  1. Mucosa
  2. Submucosa
  3. Muscularis
  4. Serosa
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4
Q

Layers of Mucosa

A

Epithelium, Lamina propria, muscularis mucosae

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5
Q

Layers of Submucosa

A

Submucosal Plexus (Meissner’s Plexus)

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6
Q

Layers of Muscularis

A

Myenteric Plexus (Auerbach’s Plexus)

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7
Q

True or False

Auerbach’s Plexus : Myenteric Plexus
Meissner’s Plexus : Submucosal Plexus

A

True

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8
Q

Histology of Mouth’s Mucosa

A

Non-keratinized Stratified Squamous Epithelium

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9
Q

Histology of Pharynx’s Mucosa

A

Non-keratinized Stratified Squamous Epithelium

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10
Q

Histology of Esophagus’ Mucosa

A

Non-keratinized Stratified Squamous Epithelium

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11
Q

Histology of Stomach’s Mucosa

A

Simple Columnar Epithelium

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12
Q

Histology of Small Intestine’s Mucosa

A

Simple Columnar Epithelium

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13
Q

Histology of Large Intestine’s Mucosa

A

Simple Columnar Epithelium

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14
Q

Histology of Anus’ Mucosa

A

Non-keratinized Stratified Squamous Epithelium

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15
Q

Histology of Esophagus’ Submucosa

A

Submucosal Mucous Glands

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16
Q

Histology of Duodenum’s Submucosa

A

Brunner’s Glands

17
Q

Histology of Ileum’s Submucosa

A

Peyer’s Patches

18
Q

Histology of Esophagus’ Muscularis

A

2 smooth muscle layers; circular and longitudinal

19
Q

Histology of the Stomach’s Muscularis

A

3 smooth muscle layers; Oblique, Circular, Longitudinal

20
Q

Histology of Esophagus’ Serosa

A

Adventitia

21
Q

Histology of Stomach’s Serosa

A

Visceral Peritoneum

22
Q

What tissue makes up the adventitia of the esophagus

A

Loose Areolar Connective Tissue

23
Q

Division of Stomach’s Histological regions

A
  1. Cardiac Region
  2. Fundic Region
  3. Pyloric Region
24
Q

Cells found in the fundic region

A
  1. Mucous Neck Cells
  2. Parietal (Oxyntic) Cells
  3. Chief (peptic/zymogen)Cells
  4. Enteroendocrine Cells
  5. Undifferentiated Cells
25
True or False, Submucosal layer of stomach (fundic region) contains blood vessels, lymphatics, and Meissner's Plexus
True
26
Mucosal Characteristics of this organ are: 1. Villi & Microvilli 2. Plicae circularis 3. few goblet cells 4. Crypts of Lieberkuhn
Small Intestine
27
What segment of intestine has the presence of Brunner's Glands in its submucosa
Duodenum
28
True or False, Brunner's Glands is also present in Jejunum
False, it is absent in Jejunum
29
This segment of Small intestine has the presence of Lymphoid organs called ________
Ileum, Peyer's Patches
30
This organ has no Plicae circularis and villi, but has microvilli and large number of Goblet Cells
Large Intestine
31
True or False, Crypts of Lieberkuhn is present in Large Intestine
True
32
This is a small blind-ending diverticulum with large accumulations of lymphoid tissues in lamina propria
Vermiform Appendix
33
This gland lacks taenia and appendices of epiploicae, and a continuous coat of longitudinal muscle is present
Rectum
34
What epithelium lines the Anal Canal
Upper Part: Simple Columnar Epithelium Middle Part: Non-keratinized Stratified Squamous Epithelium Lower Part: Covered by true skin
35
Is the submucosal fold between anal columns
Pectinate Line
36
True or False, Muscularis externa circular muscle forms voluntary internal anal sphincter
False, it forms involuntary internal anal sphincter
37