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VETS1003: Digestion > Mesenteries > Flashcards

Mesenteries Flashcards

1
Q

The wall of the abdominal cavity is lined by the

A

Parietal peritoneum

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2
Q

The kidneys lie in the ___ space

A

Retroperitoneal Space

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3
Q

If you approach the abdominal cavity from the ventral aspect, which wall of the greater omentum do you see?

A

Superficial wall

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4
Q

As the stomach rotates during development, the dorsal primitive mesentry becomes the

A

Greater omentum

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5
Q

Four boundaries of the abdominal cavity

A
  1. Dorsal (lumbar vertebrae)
  2. Lateral and Ventral (ribs and abdominal muscle)
  3. Caudal (pelvic inlet)
  4. Cranial (diaphragm)
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6
Q

The thorax is defined by the

A

Margin of the ribs

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7
Q

The abdominal cavity extends

A

Well under the costal arch

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8
Q

The parietal peritoneum is on the

A

Wall of abdominal cavity

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9
Q

The visceral peritoneum (2)

A

-also called tunica serosa
-reflected over the organs in the abdominal cavity

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10
Q

The space between the Parietal and Visceral Peritoneums is

A

Peritoneal Cavity

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11
Q

Which peritoneum goes over organs

A

Visceral peritoneum (tunica serosa)

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12
Q

Mesentry support

A

Abdominal organs

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13
Q

The retroperitoneal space (3)

A

-lies dorsal to parietal peritoneum
-between the peritoneum and sublumbar muscles
-potential space

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14
Q

What 4 structures are located in the abdominal cavity BUT above the peritoneal space

A

-aorta
-caudal vena cava
-kidneys
-adrenal gland

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15
Q

The parietal peritoneum reflects down from the dorsal wall to become the

A

Mesentery

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16
Q

Serous membrane of mesenteries (5)

A

-thin layer
-lubricated by production of serous fluid
-loose connective tissue
-squamous mesothelial cells
-irregular microvilli

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17
Q

Serous fluid of the mesenteries (4)

A

-similar to plasma
-low protein
-free cells (lymphocytes, macrophages, etc.)
-NO red blood cells

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18
Q

Inflammation of the peritoneal cavity is

A

Peritonitis

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19
Q

Infection of the peritoneal cavity is called

A

Septic peritonitis

20
Q

Peritoneal effusion occurs when

A

Volume of fluid and number of cells increase —> increased fibroblasts —> formation of adhesions

21
Q

Peritoneal effusion can be caused by (6):

A

-inflammation (peritonitis)
-infection (septic peritonitis)
-pancreatitis
-parasites
-haemorrhage
-cancer

22
Q

Stoma (3)

A

-located in the diaphragm
-aid in reabsorption
-drain via lymphatic system

23
Q

Development of mesenteries occurs

A

In embryo

24
Q

During development, the embryonic digestive tract

A

Is a tube supported/connected to peritoneum via the Dorsal and Ventral Primitive Mesentery

25
Q

During embryonic development, the digestive tract

A

Lengthens and twists

26
Q

The greater omentum attaches to

A

Stomach at the greater curvature

27
Q

During development, the ventral primitive Mesentery will become

A

Lesser omentum

28
Q

The lesser omentum attaches to

A

The liver

29
Q

The dorsal primitive Mesentery will become the

A

Greater omentum

30
Q

Mesenteries assist the GIT by

A

Carrying blood vessels, nerves, etc.

31
Q

Which primitive Mesentery disappears during development

A

Ventral primitive Mesentery

32
Q

2 walls of the greater omentum

A

-deep wall
-superficial wall

33
Q

The greater omentum contains (3)

A

-blood vessels
-fat
-lymphatic tissue

34
Q

Greater omentum (3)

A

-fold of serosa between the dorsal body wall and greater curvature of stomach
-repairs damage to peritoneum through the formation of adhesions
-very mobile

35
Q

Deep wall of greater omentum (2)

A

-runs from the dorsal body wall near the pancreas to the pelvis
-folds centrally

36
Q

Superficial wall of the greater omentum (2)

A

-runs back to the greater curvature from the deep wall
-can be seen when abdomen is opened ventrally

37
Q

The superficial and deep walls of the grater omentum form

A

A sac called the Omental Bursa

38
Q

The omental bursa is an

A

Enclosed pocket of peritoneal cavity

39
Q

Entry to the omental bursa is via the

A

Epiploic formen of Winslow (between the hepatic portal vein and caudal vena cava)

40
Q

Intestines can become caught in the

A

Epiploic form and of Winslow

41
Q

What attaches the grater omentum to the spleen

A

Gastrosplenic ligament

42
Q

The spleen will develop into

A

Dorsal mesogastrium

43
Q

Gastric dilatation volvulus (GDV) (4)

A

-stomach dilates due to food/gas
-stomach rotates in the abdomen (volvulus) and can drag the spleen with it
-blood supply is cut off
-life threatening

44
Q

What attaches the lesser curvature of the stomach to the liver

A

Hepatogastric ligament

45
Q

Mesenteries support the

A

Intestines

46
Q

What attaches the duodenum to the liver

A

Hepatoduodenal ligament

47
Q

The root of Mesentery (3)

A

-follows line of aorta
-origin of cranial mesenteries artery
-contains large jejunal lymph nods

VETS1003: Digestion (19 decks)

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