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*Anatomy - Abdomen > 3.1.4 Large Intestine > Flashcards

3.1.4 Large Intestine Flashcards

1
Q

How can the large intestine be distinguished from the small intestine?

A
  1. Teniae coli
  2. Fatty omental appendices
  3. Haustra
  4. Villi absent from mucosa
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2
Q

What is the teniae coli?

A

3 seperate longitudinal bands of smooth muscle which run down entire colon; contract lengthwise to produce haustra

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3
Q

What are fatty omental appendices?

A

Small Pouches, extending into the Peritoneum, which are filled with Fatty Tissue

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4
Q

What are haustra?

A

Sacculations between the teniae

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5
Q

How is the caecum peritonised?

A

intraperitoneal

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6
Q

How is the ascending colon peritonised?

A

retroperitoneal

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7
Q

How is the transverse colon peritonised?

A

intraperitoneal

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8
Q

How is the descending colon peritonised?

A

retroperitoneal

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9
Q

How is the sigmoid colon peritonised?

A

intraperitoneal

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10
Q

How is the appendix peritonised?

A

intraperitoneal

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11
Q

What is the midgut/hidgut boundary of the large intestine?

A

2/3 along the transverse colon

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12
Q

What is the relationship between the boundary and organisation of the arterial supply?

A

Midgut is supplied by the superior mesenteric artery

Hindgut is supplied by the inferior mesenteric artery

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13
Q

In which abdominal region is the caecum and appendix located?

A

right iliac/inguinal region

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14
Q

Which 2 structures open into the cavity of the caecum?

A

Ileum; appendix

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15
Q

What are the 2 flexures found on the Colon?

A
    1. The Right Hepatic (Colic) Flexure

2. The Left Splenic (Colic) Flexure

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16
Q

What is the name of the Orifice / Valve which connects the Caecum and the Ileum?

A

The Ileocecal Orifice / Valve

17
Q

Where is the base of the appendix?

A

Base of the caecum

18
Q

Where is the tail of the appendix located?

A

It is variable

19
Q

What is McBurney’s point and why is it useful clinically?

A

1/3 of distance from right superior iliac spine to the umbilicus; it is where the pain is referred in appendicitis

*Anatomy - Abdomen (13 decks)

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