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Anatomy Lab > Lab 4 Abdominal Viscera 3 > Flashcards

Lab 4 Abdominal Viscera 3 Flashcards

1
Q

What are the branches of the inferior mesenteric artery?

A

left colic artery, sigmoid arteries, superior rectal artery

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2
Q

Transverse trajectory toward the superior end of the descending colon

A

left colic artery

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3
Q

3-4 arteries that pass through the sigmoid mesocolon to supply the sigmoid colon

A

sigmoid arteries

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4
Q

Terminal end of the IMA, supplying the proximal rectum via right and left branches

A

superior rectal artery

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5
Q

IMA and left ureter lie in the ____ space with the vessels ___ to the ureter. The vessels going to the descending colon stay more or less ___ while the vessels going to the sigmoid colon become ____ as they approach the sigmoid colon.

A

retroperitoneal space

anterior

retro

intraperitoneal

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6
Q

The tributaries of what parallel the branches of the IMA?

A

inferior mesenteric vein

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7
Q

Tracing the IMV superiorly along the left side of the IMA, passing posterior to the pancreas to join the ____ or ____ (less common).

A

splenic vein

superior mesenteric vein

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8
Q

RLQ, intraperitoneal, own mesentery

A

cecum

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9
Q

Attached to the cecum at the confluence of the teniae coli

A

veriform appendix

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10
Q

Mesentery of the appendix containing what artery?

A

mesoappendix, appendicular artery- a branch of the ileocolic artery

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11
Q

Extends superiorly from the cecum from the level of the ileocecal junction to the right colic flexure

A

ascending colon

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12
Q

Extends from the right colic flexure to the left colic flexure. The ___ flexure is more superior than the ___. This allows ___ to be freely mobile. What are the two mesenteries here?

A

transverse colon

left is more superior than the right

transverse colon freely mobile

transverse mesocolon and greateromentum

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13
Q

Extends inferiorly form the left colic flexure to the LLQ

A

descending colon

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14
Q

Extends from the descending colon at the iliac crest to the level of the 3rd sacral segment within the pelvis where it is continuous with the rectum. What is the mesentery?

A

sigmoid colon

sigmoid mesocolon

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15
Q

3 narrow bands of longitudinal muscle

A

teniae coli

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16
Q

Outpouchings of the colon wall

A

haustrum

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17
Q

Small accumulations of fat covered by visceral peritoneum

A

omental appendices (epiploic appendices)

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18
Q

What is found on the anterior surface of the pancreas? BEWARE

A

pancreaticoduodenal vessels

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19
Q

Passes transversely to the right from the pylorus of the stomach with the hepatoduodenal ligament attached to it. Considered to be intra or retro?

A

superior (first part) of duodenum

intraperitoneal (L1)

20
Q

Found paravertebral to the right, anterior to the hilum of the right kidney, right renal vessels, and inferior vena cava. Considered to be intra or retro?

A

descending (second) part of duodenum

retroperitoneal (L2)

21
Q

Lies anterior to the inferior vena cava and abdominal aorta. Consider to be intra or retro? What crosses anteriorly? Posteriorly?

A

horizontal (third) part of duodenum

retroperitoneal (L3)

Anteriorly- superior mesenteric vessels

Posteriorly- inferior mesenteric vessels

22
Q

Ascends up to L2 vertebral level, retroperitoneal until it bends anteriorly to become intraperitoneal at its junction with the jejunum

A

ascending (fourth) part

23
Q

Thickest portion of pancreas, lies within the curvature of the duodenum, anterior to the IVC

A

head

24
Q

Small, inferior projection of the head of the pancreas, posterior to the superior mesenteric vessels

A

uncinate process

25
Q

Superior to the uncinate process of pancreas, anterior to the superior mesenteric vessels and formation of the hepatic portal vein

A

neck

26
Q

Extends between the neck and the tail of the pancreas, crosses the abdominal aorta

A

body

27
Q

The narrow left end of the body of the pancreas, its tip lies in the splenorenal ligament and contacts the hilum of the spleen

A

tail

28
Q

Branches of the gastroduodenal artery (2)

A

anterior superior pancreaticoduodenal artery

posterior superior pancreaticoduodenal artery

29
Q

What is usually the most proximal branch of the superior mesenteric artery? Where does it enter the pancreas?

A

inferior pancreaticoduodenal artery

enters the inferior portion of the head of the pancreas to anastomose with the superior set

30
Q

What passes along the superior border of the pancreas? What are the two branches that supply the pancreas?

A

splenic artery

  • dorsal pancreatic artery (neck of pancreas)
  • greater pancreatic artery (half the length between the neck and tail)
31
Q

What has anastomosis with the greater omentum along the greater curvature of the stomach?

A

left and right gastro-omental artery

32
Q

What is the most medial branch of the inferior mesenteric artery?

A

superior rectal artery

33
Q

The suspensory ligament of the duodenum is found at what junction?

A

duodenojejunal

34
Q

Folds of mucosa within the body of the stomach

A

rugae (gastric folds)

35
Q

Horizontal narrowing of the body of the stomach, elading to the sphincter

A

pyloric antrum

36
Q

Thick, dense structure, an actual sphincter that regulates gastric emptying

A

pyloric sphincter

37
Q

Opening in the center of the sphincter

A

pyloric orifice

38
Q

Fully circumferential folds of mucosa oriented perpendicular to the longitudinal axis of the small intestine

A

circular folds (plicae circularis)

39
Q

Small elevation of mucosa on the posteromedial wall through which the main pancreatic duct and the bile duct open into the 2nd part of the duodenum

A

major dudoenal papilla

40
Q

Typically found midway between the superior and inferior borders of the pancreas

A

main pancreatic duct

41
Q

If you trace the main pancreatic duct toward the tail and to the right into the depths of the head, you will find it merging with what?

A

the bile duct near the descending duodenum and the major duodenal papilla

42
Q

What is found only within the head of the pancreas superior to and merging with the main duct?

A

accessory pancreatic duct

43
Q

Where are the circular folds (plicae circulares) larger and closer together?

a. jejunum
b. ileum

A

jejunum

44
Q

What is found on the interior of the ileum?

A

Peyer’s patches

45
Q

What is found between adjacent haustra?

A

semilunar folds (plicae semilunares)

Anatomy Lab (11 decks)

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