Chapter 47: Colon and Rectum- Anatomy Flashcards

1
Q

Identify the arterial blood supply to the colon:

A
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2
Q

What are the white lines of Toldt?

A

Lateral peritoneal reflections of the ascending and descending colon

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3
Q

What parts of the GI tract do not have a serosa?

A

Esophagus, middle and distal rectum

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4
Q

What are the major anatomic differences between the colon and the small bowel?

A

Colon has:

  • teniae coli
  • haustra
  • appendices epiploicae (fat appendages)

whereas the small intestine is smooth

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5
Q

What is the blood supply to the rectum:

Proximal?

A

Superior hemorrhoidal (or superior rectal) from the IMA

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6
Q

What is the blood supply to the rectum:

Middle?

A

Middle hemorrhoidal (or middle rectal) from the hypogastric (internal iliac)

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7
Q

What is the blood supply to the rectum:

Distal?

A

Inferior hemorrhoidal (or inferior rectal) from the pudendal artery (a branch ofthe hypogastric artery)

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8
Q

What is the venous drainage of the rectum:

Proximal?

A

Via the IMV to the splenic vein, then to the portal vein

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9
Q

What is the venous drainage of the rectum:

Middle and distal?

A

Via the iliac vein to the IVC

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