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Abdomen > Comparative Lab > Flashcards

Comparative Lab Flashcards

1
Q

What structure does the greater omentum develop from?

A

Dorsal mesogastrium

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2
Q

What areas does the great omentum attach?

A

Greater curvature of the stomach

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3
Q

What structure is located within the superficial leaf of the greater omentum?

A

Spleen

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4
Q

What structure lies within the deep leaf of the greater omentum?

A

Left lobe of pancreas

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5
Q

What is this?

A

Cardiac or pyloric glands
Glandular epithelial cells: mucus producing cells

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6
Q

What is this?

A

Proper gastric glands
Glandular Epithelial cells : Parietal cells , Chief cells

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7
Q

What do parietal cells produce?

A

H+ and Cl-

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8
Q

What do chief cells produce?

A

Pepsinogen and rennin

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9
Q

What feature in horses differentiates the glandular from non-glandular regions?

A

Margo plicatus

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10
Q

In horses, what is the distribution of the glandular region?

A

The cardiac region is narrow.
Glandular region is mainly proper gastric glands and pyloric glands

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11
Q

What is a unique feature in the pig stomach?

A

Gastric diverticulum, torus pyloricus

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12
Q

What is the distribution of glands in the pig stomach?

A

The cardiac glands 1/3
Remainder is proper gastric and pyloric glands

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13
Q

What is the structure of the ruminant stomach?

A

Rumen, Reticulum, Omasum : non glandular, referred to as forestomach
Abomasum: glandular

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14
Q

Function of rumen

A

Fermentation vat in which microorganisms act on ingests to produce short chain volatile fatty acids to produce energy

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15
Q

Reticulum and Omasum function

A

Mechanically break down ingesta

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16
Q

Pathway through compound stomach of adults

A

Ingesta -> Rumen/reticulum -> redirected to esophagus where it is regurgitated into the mouth as cud and rechecked ->re swallowed into rumenoreticulum -> omasum -> abomasum -> glandular secretions added -? Duodenum

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17
Q

What is the longitudinal separation of the rumen?

A

Longitudinal groove into dorsal and ventral sacs

18
Q

What is the vertical groove dividing?

A

Coronary groove
L/R dorsal coronary groove
L/R ventral coronary groove

19
Q

What groove separates the rumen and reticulum?

A

Ruminoreticular groove

20
Q

What groove does the greater omentum attach to of the compound stomach?

A

Longitudinal grooves

21
Q

What is the reticular/esophageal sulcus?

A

Begins at cardia, ends at reticulo-omasal orifice
This allows ingested fluids from esophagus directly into the abomasum

22
Q

What is the distribution of glands of the ruminant stomach?

A

Primarily proper gastric glands. Narrow rim of cardiac glands and small region of pyloric glands

23
Q

What does the pancreas develop from?

A

Mesoduodenum

24
Q

The duct of the exocrine pancreas drains where?

A

Duodenum

25
Q

What lobes of the liver is the gallbladder between?

A

Right medial and quadrate lobes

26
Q

What artery is the ileum vascularized by?

A

Antimesenteric ideal artery

27
Q

The cat cecum is ____ convoluted than the dog.

A

Less

28
Q

Transition between ascending and transverse portions of colon is marked by the :

A

Right Colic Flexure

29
Q

Transition between the transverse and descending portions of colon marked by:

A

Left colic flexure

30
Q

In horses, the ileum enters the cecum at the:

A

Ileocecal junction

31
Q

LI is characterized by what 2 structures:

A

Tania and Haustra

32
Q

Horse colon pathway

A

Right ventral colon, sternal flexure, left ventral colon, pelvic flexure, left dorsal colon, diaphragmatic flexure, right dorsal colon

33
Q

What does the large intestine of ruminants look like?

A

Ascending colon is lengthened and pulled causally. It is composed of proximal, spiral, and distal loops

34
Q

What does the pig LI look like?

A

Instead of spiral, it is a cone

35
Q

Dorsal mesogastrium is considered what structure?

A

Greater omentum

36
Q

What does the ventral mesogastrium persist as?

A

Lesser omentum and falciform ligament

37
Q

What organ develops in the ventral mesogastrium ?

A

Liver

38
Q

Where is the falciform ligament located?

A

Between liver and ventral abdominal wall

39
Q

In ruminants the greater omentum attaches to ?

A

From abomasum to rumen

40
Q

Where does the epiploic foramen enter?

A

Enters the omental bursa

41
Q

What is the Supraomental recess

A

A compartment which is dorsal to the deep leaf and contains most intestines

Abdomen (7 decks)

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