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human anatomy and organogenesis > Vascular supply and lymph drainage of GI > Flashcards

Vascular supply and lymph drainage of GI Flashcards

1
Q

What does the celiac trunk supply? (embryological origins)

A

The foregut

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2
Q

What does the superior mesenteric artery supply? (embryological origins)

A

The midgut

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3
Q

What does the inferior mesenteric artery supply? (embryological origins)

A

The hindgut

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4
Q

3 branches of the celiac trunk

A

Left gastric artery
Splenic artery
Common hepatic artery

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5
Q

What does the proper hepatic artery supply?

A

The liver

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6
Q

What does the proper hepatic artery contribute to in the liver?

A

The portal triad

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7
Q

Where does the right gastric artery originate?

A

The common hepatic artery

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8
Q

Where does the right and left gastric artery join in an anastomosis?

A

In the lesser curvature of the stomach

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9
Q

What is the left gastro-mental artery a branch of?

A

Splenic artery

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10
Q

What is the right gastro-mental artery a branch of?

A

Gastroduodenal artery

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11
Q

Where does the inferior pancreatico-duodenal artery originate?

A

Superior mesenteric artery

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12
Q

What are the jejunal and ill arteries branche of?

A

The superior mesenteric artery

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13
Q

What is the anastomoses between the celiac trunk and the superior mesenteric?

A

Pancreatico-duodenal arteries

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14
Q

What is the anastomoses between the inferior mesenteric and the superior mesenteric?

A

Middle colic artery and left colic artery

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15
Q

What is the anastomoses between the internal iliac artery and the inferior mesenteric?

A

Superior rectal artery and middle/inferior rectal artery

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16
Q

5 arteries that supply the stomach

A

Left gastric
Right gastric
Right gastroomental
Left gastroomental
Short gastric

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17
Q

2 arteries that supply the head of the pancreas and the duodenum

A

Sup pancreaticoduodenal artery (post and ant)
Inf pancreaticoduodenal artery (post and ant)

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18
Q

What supplies the body and tail of the pancreas?

A

Splenic artery

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19
Q

What supplies the jejunum and ileum?

A

Branches of the superior mesenteric artery

20
Q

What guarantees blood supply to the small bowels?

A

The anastomoses between the branches of the superior mesenteric artery

21
Q

What supplies the cecum and appendix?

A

Ileocolic artery

22
Q

What supplies the ascending colon?

A

Right colic artery

23
Q

What supplies 2/3 of the transverse colon?

A

The middle colic artery

24
Q

What supplies the distal 1/3 of the transverse colon?

A

Left colic artery

25
Q

What supplies the descending colon?

A

Left colic artery

26
Q

What supplies the sigmoid of the colon?

A

Sigmoid artery

27
Q

What supplies 2/3 of the rectum?

A

Superior rectal artery

28
Q

What is the portal vein formed by?

A

Superior mesenteric vein
Splenic veins (and inferior mesenteric)

29
Q

Where is the venous anastomoses between the portal and caval system?

A

At the rectum

30
Q

What does the middle rectal vein and inferior rectal vein drain into?

A

Internal iliac vein

31
Q

Which system does the superior rectal vein drain into?

A

The portal system

32
Q

What nervous system innervates the GI tract?

A

The autonomous (sympathetic and parasympathetic)

33
Q

What is the sympathetic effect on the gastrointestinal tract?

A

Mobility and secretion goes down
Contraction of sphincter muscles

34
Q

What is the sympathetic effect on the splenic capsule?

A

Contraction

35
Q

What is the sympathetic effect on the liver?

A

Glycogenolysis/glucogenesis increases

36
Q

What is the sympathetic effect on the pancreas?

A

Insulin and genereal secretion goes down

37
Q

What is the parasympathetic effect on the pancreas?

A

Increase in secretion

38
Q

What is the parasympathetic effect on the liver?

A

No effect

39
Q

What is the parasympathetic effect on the splenic capsule?

A

No effect

40
Q

What is the parasympathetic effect on the gastrointestinal tract?

A

Increase in secretion and mobility
Relaxation of the sphincter muscle

41
Q

What is visceral pain?

A

Pain afferents from the viscera

42
Q

What is somatic pain?

A

Pain afferents from the dermatomes

43
Q

Where does visceral pain and somatic pain terminate?

A

The same processing neurons in the posterior horn of the spinal cord

44
Q

What is referred pain?

A

The confusion of the relationship between the pain’s origins and it perception

45
Q

Where is the pain impulses from a particular internal organ consistently projected?

A

To the same well-defined skin area

human anatomy and organogenesis (21 decks)

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