2.2 SMA, IMA and Targets Flashcards Preview

Gross Anatomy > 2.2 SMA, IMA and Targets > Flashcards

Flashcards in 2.2 SMA, IMA and Targets Deck (42):
1

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

uncinate process and neck

2

The duodenum is mostly retroperitoneal except for what segment?

Superior

3

The descending segment of the duodenum contains what?

major duodenal papilla

4

Superior segment of duodenum anchored to liver via ...

hepatoduodenal ligament

5

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

suspensory ligament

6

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

duodenal cap (ampulla)

7

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

place circulares

8

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

posterior

9

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

splenic a.

10

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

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

11

Arterial supply from SMA to the pancreas and duodenum via...

inferior pancreaticoduodenal a.

12

Venous drainage of most of the pancreas via...

pancreatic vv. from splenic v.

13

Venous drainage of head of pancreas and duodenum via.

pancreaticoduodenal vv. from SMV

14

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

gastroduodenal a. and pancreas

15

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

pyloric nodes -> celiac nodes -> cisterna chyli

16

Small intestine is anchored to the posterior wall by ...

mesentery proper

17

Root of mesentery proper courses obliquely from ... to ...

cecum to distal (ascending segment) duodenum

18

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

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

19

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

jejunum

20

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

ileum

21

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

jejunum

22

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

ileum

23

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

Ileum

24

What flexure is between ascending and transverse colon?

Hepatic flexure

25

What flexure is between transverse and descending colon?

Splenic flexure

26

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

taenia coli

27

What gathers colon into pouches called haustra?

Plicae semilunares

28

Is the ascending colon retroperitoneal or intraperitoneal?

retroperitoneal - peritoneum only on anterior surface

29

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

appendicular artery

30

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

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

31

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

epiloic (omental) appendages

32

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

Middle colic a.

33

What branch off the SMA goes towards the ascending colon?

right colic a.

34

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

Ileocolic a.

35

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

marginal artery

36

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

lacteals

37

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

superior mesenteric nodes

38

What branch off the IMA goes towards the descending colon?

left colic a.

39

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

sigmoid arteries (2-3)

40

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

superior rectal a.

41

What is the only intraperitoneal portion of the hindgut?

sigmoid

42

IMV drains into ...

splenic v then into hepatic portal vein