GI/Peritoneum Overview Flashcards

1
Q

What borders form the abdominopelvic cavity?

A

Diaphragm
Abdominal Wall Muscles
Lumbar Vertebral Column
Pelvic Floor Muscle

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2
Q

What lines the abdominopelvic cavity?

A

The peritoneum:

  • Serous membrane
  • Parietal on cavity wall
  • Visceral on an organ
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3
Q

How does blood, nerves & lymphatics get past the peritoneum to the organs?

A

peritoneum folds over organs forming folds called mesentery connecitng the organs to the posterior wall allowing blood, nerves, and lymphatics access

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4
Q

Whats the difference between intra & Retro peritoneal organs?

A

Intraperitoneal are connected to the posterior wall by mesentery

Retroperitoneal are attached directly to the posterior wall

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5
Q

Whats an omenta?

A

A double fold of peritoneum connecting two organs

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6
Q

List the omenta?

A

Greater:

  • Stomach to transverse colon
  • Dangles down anterior to intestines

Lesser - Stomach to Liver

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7
Q

Is there any external access to the peritoneum?

A

Not in men but yes in women.

So women are more likely to get peritonitis without injury

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8
Q

What are the two sacs of the peritoneal cavity?

A
  • The Greater and lesser sacs (lesser is also called omental bursa)
  • Created by the twisting of the stomach
  • Connected by the epiploic foramen over the stomach
  • Greater anterior
  • Lesser posterior
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9
Q

What is the linear alba?

A

The tendinous attachment between anterior abdominal wall muscles where they meet in the centre.
A white line down the centre of the abdomen

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10
Q

What is the rectus sheath?

A

A membrane covering the rectus abdominus where it contacts transverse muscles so it can move independantly

Formed from the aponeurosis of the obliques and transversus abdominis

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