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Gross Anatomy > 2.2 SMA, IMA and Targets > Flashcards

2.2 SMA, IMA and Targets Flashcards

1
Q

SMA & SMV pass anterior to … and posterior to … of the pancreas

A

uncinate process and neck

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2
Q

The duodenum is mostly retroperitoneal except for what segment?

A

Superior

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3
Q

The descending segment of the duodenum contains what?

A

major duodenal papilla

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4
Q

Superior segment of duodenum anchored to liver via …

A

hepatoduodenal ligament

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5
Q

Ascending portion of duodenum anchored to diaphragm via… (helps regulate flow by changing tension)

A

suspensory ligament

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6
Q

Superior portion of duodenum has a smooth inner wall …., which receives chyme from stomach

A

duodenal cap (ampulla)

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7
Q

Rest of the internal wall of the duodenum has folds of mucosa called…

A

place circulares

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8
Q

The horizontal portion of the duodenum passes … to SMA and SMV.

A

posterior

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9
Q

Arterial supply to the pancreas (body and tail) via pancreatic aa. via …

A

splenic a.

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10
Q

Arterial supply (from celiac trunk) to the pancreas and duodenum via …

A

superior pancreaticoduodenal aa. (via gastroduodenal a. from common hepatic a.)

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11
Q

Arterial supply from SMA to the pancreas and duodenum via…

A

inferior pancreaticoduodenal a.

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12
Q

Venous drainage of most of the pancreas via…

A

pancreatic vv. from splenic v.

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13
Q

Venous drainage of head of pancreas and duodenum via.

A

pancreaticoduodenal vv. from SMV

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14
Q

Erosion of the wall of the Duodenum(ampulla) due to peptic ulcers leads to pancreatitis and GI bleed because of what structures?

A

gastroduodenal a. and pancreas

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15
Q

Lymph from pancreas and duodenum (foregut) drains into what nodes?

A

pyloric nodes -> celiac nodes -> cisterna chyli

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16
Q

Small intestine is anchored to the posterior wall by …

A

mesentery proper

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17
Q

Root of mesentery proper courses obliquely from … to …

A

cecum to distal (ascending segment) duodenum

18
Q

Does the jejunum or the ileum have very tall place circulares?

A

jejunum (they increase surface area b/c absorbing more nut. here)

19
Q

Which, the jejunum or the ileum, has fewer, larger arcades (~1 row)?

A

jejunum

20
Q

Which, the jejunum or the ileum, has short vasa recta?

A

ileum

21
Q

Which, the jejunum or the ileum, has longer vasa recta?

A

jejunum

22
Q

Which, the jejunum or the ileum, has more numerous, smaller arcades?

A

ileum

23
Q

Which, the jejunum or the ileum, has Peyer’s patches?

A

Ileum

24
Q

What flexure is between ascending and transverse colon?

A

Hepatic flexure

25
Q

What flexure is between transverse and descending colon?

A

Splenic flexure

26
Q

Longitudinal muscles of colon wall condensed into three bands…, begin at root of appendix and merge into continuous muscular layer at rectum.

A

taenia coli

27
Q

What gathers colon into pouches called haustra?

A

Plicae semilunares

28
Q

Is the ascending colon retroperitoneal or intraperitoneal?

A

retroperitoneal - peritoneum only on anterior surface

29
Q

What is in the appendix’s mesentery (mesoappendix)?

A

appendicular artery

30
Q

The transverse colon is fused to the underside of the greater omentum, and attached to the wall by the …

A

transverse mesocolon (extends along inf. pancreas, and descending duodenum)

31
Q

droplets of fatty mesentery project from the surface of colon (typically associated with taenia coli.

A

epiloic (omental) appendages

32
Q

What branch off the SMA goes toward the transverse colon in the transverse mesocolon?

A

Middle colic a.

33
Q

What branch off the SMA goes towards the ascending colon?

A

right colic a.

34
Q

What branch off the SMA travels obliquely to the junction between the ileum and the colon?

A

Ileocolic a.

35
Q

The middle, right and ileocolic arteries all supply … which parallels the colon and distributes blood to the organ through vasa recta?

A

marginal artery

36
Q

lymphatics of small intestine are called …, they carry all dietary lipids, only route to bloodstream and liver.

A

lacteals

37
Q

lymphatics from the midgut drain into … which continue to cisterna chyli

A

superior mesenteric nodes

38
Q

What branch off the IMA goes towards the descending colon?

A

left colic a.

39
Q

What branch off the IMA goes towards the sigmoid colon in the sigmoid mesocolon?

A

sigmoid arteries (2-3)

40
Q

What branch off the IMA goes towards the top of the rectum?

A

superior rectal a.

41
Q

What is the only intraperitoneal portion of the hindgut?

A

sigmoid

42
Q

IMV drains into …

A

splenic v then into hepatic portal vein

Gross Anatomy (25 decks)

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