General Arrangement of the Abdomen Flashcards

1
Q

What abdominal structures are along the Transpyloric Plane?

A
  1. Fundus of the Gallbladder
  2. End of Spinal Cord
  3. Pancreatic Body
  4. Origin of Superior Mesenteric Artery
  5. Left and Right Colic Flexures
  6. Hilum of the Kidneys
  7. The Spleen
  8. Pyloris of the Stomach
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2
Q

Where is the Foregut?

A

From the Distal end fo Oesophagus to the Proximal half of Duodenum

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3
Q

Where is Midgut?

A

From the Distal half of duodenum to Proximal 2/3 of Transverse Colon

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4
Q

Where is Hindgut?

A

From Distal third of Transverse Colon to the Rectum

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5
Q

What organs are in the Foregut?

A
  1. Oesophagus
  2. Stomach
  3. Liver
  4. Gallbladder
  5. Pancreas
  6. Spleen
  7. Proximal half of duodenum
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6
Q

What organs are in Midgut?

A
  1. Distal half of Duodenum
  2. Jejunum
  3. Ileum
  4. Cecum
  5. Appendix
  6. Ascending Colon
  7. Hepatic Flexure of Colon
  8. Proximal 2/3 of Transverse Colon
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7
Q

What organs are in HIndgut?

A
  1. Distal Third of Transverse Colon
  2. Splenic Flexure
  3. Descending Colon
  4. Sigmoid Colon
  5. Rectum
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8
Q

What is the blood supply to foregut?

A

Coeliac Trunk

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9
Q

What is the blood supply to Midgut?

A

Superior Mesenteric Artery

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10
Q

What is the blood supply to Hindgut?

A

Inferior Mesenteric Artery

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11
Q

What is the venous drainage of Foregut?

A

Splenic Vein to Portal Vein to liver

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12
Q

What is the Venous Drainage of Midgut?

A

Superior Mesenteric Vein to Portal Vein to liver

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13
Q

What is the Venous Drainage of Hindgut?

A

Inferior Mesenteric Vein to Superior Mesenteric Vein to Portal Vein

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14
Q

What is the nerve supply to Foregut?

A

T5-T10

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15
Q

What is the nerve supply to midgut?

A

T9-T11

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16
Q

What is the nerve supply to Hindgut?

A

L1 and L2, possibly T12

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17
Q

Where is Visceral Pain in the Foregut felt?

A

Epigastric Region

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18
Q

Where is Visceral Pain in the Midgut felt?

A

Peri-Umbilical Region

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19
Q

Where is Visceral Pain in the HIndgut felt?

A

Suprapubic Region

20
Q

What is the Perineum?

A

Thin smooth glistening membrane which lines the inner walls of the abdominal cavity

21
Q

What are the 2 layers of Peritoneum?

A
  1. Parietal Peritoneum

2. Visceral Peritoneum

22
Q

Describe Parietal Peritoneum

A

Lines the body wall and is supplied by Somatic Nerves

23
Q

Describe Visceral Peritoneum

A

Covers the surface of Internal Organs and is supplied by Autonomic Nerves

24
Q

Which organs are Intraperitoneal (within the peritoneum)?

A
  1. Stomach
  2. Liver
  3. Small Intestine
  4. Spleen
  5. Gallbladder
25
Q

Which organs are Retroperitoneal?

A
  1. Kidneys
  2. Oesophagus
  3. Descending and Ascending Colon
  4. Duodenum
  5. Rectum
  6. Adrenal Glands
  7. Ureters
26
Q

Describe the attachments of Greater Omentum

A

Attaches from Greater Curvature of Stomach and Proximal part of Duodenum, hangs down and folds back up to attach to the anterior surface of Transverse Colon

27
Q

What ligaments are within Greater Omentum?

A
  1. Gastrosplenic
  2. Gastrocolic
  3. Gastroduodenal
  4. Splenorenal
28
Q

What is the blood supply to Greater Omentum?

A

Left and Right GastoEpiploic Arteries

29
Q

What is the Peritoneal Cavity?

A

The space beginning superiorly at the diaphragm and extending inferiorly into the pelvic cavity

30
Q

Describe how the Greater Omentum divides the Peritoneal Cavity into 2 parts

A
  1. Any area that is external to Greater Omentum is known as Greater Sac
  2. Area enclosed by Greater Omentum is known as Lesser Sac
31
Q

What is the Entrance to the Lesser sac?

A

Epiploic Foramen–> Foramen of Winslow

32
Q

What are the areas within the Peritoneal Cavity (As divided by the colon)?

A
  1. Supracolic area
  2. Infracolic area
  3. Paracolic areas (gutters)
33
Q

What is Morison’s Pouch?

A

It is the Hepatorenal Pounch, separating the Liver from the Right Kidney

34
Q

How is the Peritoneal Cavity formed in embryology?

A

The Gut tube that forms the stomach invaginates into the peritoneal cavity to produce the dorsal mesogastrium

35
Q

What is mesentery?

A

It is a double layer of visceral peritoneum connecting an Intraperitoneal organ to the posterior abdominal wall

36
Q

Describe the rotation of the stomach

A
  1. Rotates 90 degrees clockwise

2. Rotates slightly clockwise on anteroposterior axis

37
Q

Describe Lesser Omentum

A

It extends from lesser curvature of stomach and first part of duodenum to the inferior surface of liver

38
Q

What are the attachments of Lesser Omentum?

A
  1. Diaphragm
  2. Fissure for Liagmentum Venous
  3. Margins of PortaHepatis
  4. Lesser Curvature of Stomach
  5. First part of Duodenum
39
Q

What are the ligaments within Lesser Omentum?

A
  1. Hepatogastric

2. Hepatoduodenal

40
Q

What is in the free edge of the Lesser Omentum?

A

Portal Triad:

  1. Common Bile Duct (right)
  2. Hepatic Artery (left)
  3. Portal Vein (behind)
41
Q

What are the Peritoneal Ligaments?

A
  1. Splenorenal
  2. Gastrophrenic
  3. Gastrosplenic
  4. Falciform
  5. Round Ligament (Ligament Teres Hepatis)
42
Q

What organs does the spleen have contact with?

A
  1. Gastric
  2. Renal
  3. Intestinal
  4. Pancreatic
43
Q

What are the dimensions of the spleen?

A

1x3x5 (in inches)

44
Q

What is the weight of the spleen?

A

7 ounces

45
Q

Where does the spleen lie?

A

Between ribs 9 and 11