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GI and Nutrition > 1.4.1 GI Vasculature, Lymphatics, and ANS > Flashcards

1.4.1 GI Vasculature, Lymphatics, and ANS Flashcards

1
Q

What vertebral level is the celiac trunk at?

A

T12/L1

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2
Q

Name the unpaired (3) and paired arteries (6) that come off the abdominal aorta (from top to bottom)

A
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3
Q

What vertebral level is the SMA at?

A

L1

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4
Q

What do each of these colored dots represent?

A
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5
Q

At what vertebral level, does the celiac trunk branch off?

A

T12/L1

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6
Q

What are the three branches of the hepatic proper?

A

Right gastric artery, L/R hepatic artery

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7
Q

What two veins join together to form the hepatic portal vein?

A

SMV and splenic vein

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8
Q

What is the artery that runs all along the large intestine?

A

The marginal artery of drummond

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9
Q

When the common hepatic artery bifurcates at the pylorus, what does it give rise to?

A

Hepatic proper artery (ascending)

Gastroduodenal artery (descending)

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10
Q

What vertebral level are the renal artery/vein at?

A

L1/L2

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11
Q

The left gastric will send some blood cranially to what organ?

A

Esophagus

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12
Q

What is one of the key anatomic characterics of the splenic artery that help identify it?

A

Highly coiled

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13
Q

What are the three branches of the IMA?

A

Left Colic

Sigmoid (3-4 branches)

Superior Rectal

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14
Q

What are some of the anastomoses b/t Celiac artery and SMA?

A
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15
Q

What is the variation (uncommon) in anastomotic connection b/t the SMA and IMA?

A

Arc of Riolan

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16
Q

What are some of the branches of the splenic artery?

A

Pancreatic branches

Short gastric arteries (fundus)

Left gastro-omental (greater curvature of stomach)

17
Q

What are the four ways that the portal system can interact with the caval system in instances of portal HTN?

A

Esophageal plexus

Paraumblicial plexus

Rectal plexus

Retroperitoneal plexus

18
Q

What is variable about the formation of the portal vein?

A

IMV

19
Q

Name the three major branches of the celiac trunk

A

Left gastric, splenic, common hepatic

20
Q

What is unique about the hepatic portal venous system?

A

NO VALVES! (blood rich in nutrients, especially after a meal)

21
Q

Describe the preganglionic and postganglionic length in the sympathetic and parasympathetic system

A
22
Q

What is the main function of visceral efferent fibers? visceral afferent fibers?

A

visceral efferent fibers: motor

visceral afferent fibers: sensory

23
Q

Name this condition

A

Portal HTN leading to “Caput Medusae”

24
Q

What vertebral level does the aorta bifurcate at?

A

L4

25
Q

Foregut organs has lymph that typically drains where? Midgut? Hindgut?

A

Forgut: Celiac

Midgut: SMA

Hindgut: IMA

26
Q

What vertebral level is the IMA at?

A

L3

27
Q

Where does the superior mesenteric artery (MSA) branch off the abdominal aorta?

A

L1

28
Q

Identify the splanchnic nerves and their ganglions/organs.

A
29
Q

What level does the aorta cross the diaphragm?

A

T12

30
Q

Both the celiac artery and SMA run behind what organ and split which organ?

A

Behind: duodenal bulb

Split: pancreas

31
Q

What are the three main branches of the SMA? (What do they supply with blood?)

A

Middle colic (transverse colon)

Right colic (ascending colong)

Ileocolic (ileocolic junction structures)

32
Q

The celiac trunk provides blood to what type of organs?

A

Foregut organs

33
Q

The IMA supplies blood to what type of organs?

A

Hindgut organs

34
Q

Portal HTN will have what effect on the esophageal plexus?

A

Lower esophageal venous varices (abnormally dialated veins)

35
Q

The four colored lines are pointing at which structures anterior to the abdominal aorta?

A
36
Q

The SMA descends anterior to these three structures

A

L renal vein, 3rd part duodenum, uncinate process of pancreas

37
Q

What type of organs receive blood from the SMA?

A

Midgut organs

38
Q

What occurs around the abdominal aorta at these levels: T12, T12/L1, L1/L2, L1, L3, L4

A

T12: diaphragm

T12/L1: Celiac trunk

L1/L2: Renal A and V

L1: SMA

L3: IMA

L4: Aortic bifurcation

GI and Nutrition (57 decks)

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