GI Tract Canines Flashcards

1
Q

Oesophagus in canines

A

Inclines to the left then regains a medial position, continues past the heart then penetrates the diaphragm

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2
Q

What are the glands in the oesophagus?

A

mostly mucus

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3
Q

Where is the stomach found?

A

(C-shaped organ) Found on the left hand side of the abdomen, It has greater and lesser curvature

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4
Q

What stomach do canines have?

A

Simple, Composed Primarily of glands, the glands occupy most of the lamina propria and produce gastric juices

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5
Q

How does the stomach expand?

A

Tunica Mucosa and Submucosa work together to expand the stomach using rugae

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6
Q

Meissners plexus

A

submucosal layer- responsible for peristaltic movement in the bowels

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7
Q

Tunica Muscularis

A

Consists of three layers of smooth muscle between Myenteric or Auerbach’s plexus

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8
Q

What are the 3 parts of the simple stomach?

A

Cardiac, Fundic and Pyloric region

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9
Q

Cardiac Region

A

Very small region, contains mucus secreting glands and is closest to the oesophagus

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10
Q

Fundic region

A

The space between the cardiac gland and the pyloric gland which contains the fundic glands

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11
Q

Pyloric gland

A

region is near the Pylorus and secretes two types of mucus and the hormone gastrin

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12
Q

Enteric nervous system

A

One of the main divisions of the autonomic nervous system

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13
Q

Omentum

A

Connecting peritoneum (connects stomach to abdominal wall)

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14
Q

What are the 4 cell types in the gastric gland?

A

Mucous, Parietal, Chief and Endocrine

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15
Q

The gastric mucosa

A

contains

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16
Q

What are the 3 parts of the omentum?

A

greater, lesser and omental bursa

17
Q

Lesser omentum

A

attached to the lesser curvature of the stomach to the portal fissure

18
Q

Greater omentum

A

attached to the greater curvature of the stomach has deep and superficial “leaves”

19
Q

Omental bursa

A

Potential space, enclosed by greater omentum

20
Q

Epiploic foramen

A

omental bursa opening to the peritoneal cavity

21
Q

What adaptations does the small intestine have?

A

Highly folded mucosa containing microvilli

22
Q

Duodenum

A

longest villi of all 3 regions and has a high number of goblet cells

23
Q

Illieum

A

Crypts contain lots of important cells including those involved in host defence and signalling

24
Q

illeal mucosa

A

large numbers of organised lymphoid tissue (Peyers patches)

25
3 parts of the large intestine?
Ceacum, Colon (ascending, descending and transverse) and rectum
26
Blood supply to the stomach
left gastric artery, hepatic artery and splenic artery- these all drain to the portal vein
27
Blood supply to the intestine
Cranial and Caudal mesenteric arteries
28
What innervates the stomach and intestine
Parasympathetic, Sympathetic and Enteric nervous system
29
what are simple stomachs primarily composed of?
glands
30
what is the ileocecal fold
a layer of peritoneum between the ileum and the coecum
31
What does the illeal mucosa contain large numbers of?
lymphoid tissue
32
What are the 4 types of cell found in the stomach?
Chief, Parietal, Endocrine, Mucus
33
Which gland secretes gastrin?
Pyloric gland
34
Which part of the small intestine has the highest number of goblet cells and the longest villi?
Duodenum
35
What side of the body is the stomach found on?
The left hand side
36
What side of the body is the ascending duodenum, jejenum and descending colon found on?
The left hand side
37
What side of the body is the descending duodenum and coecum found on?
The right hand side
38
What does the enteric nervous system control?
Meissner's and myenteric plexus