Abdominal Cavity II lecture ii

Question 1

main pancreatic duct begins in the _ and runs through the _ of the gland to the pancreatic head, where it gets very close to the _ duct

Answer 1

begins in the tail and runs through the parenchyma; very close to the bile duct

Question 2

hepatopancreatic ampulla formed by the union of _ and _ duct

Answer 2

formed by union of the main pancreatic duct and bile duct; short and dilated;

Question 3

the hepatopancreatic ampulla opens into the descending part of the duodenum at the _

Answer 3

major duodenal papilla

Question 4

pancreatic ducts: the opening at the major duodenal papilla is controlled by the

Answer 4

hepatopancreatic sphincter

Question 5

accessory pancreatic duct opens into the duodenum at the

Answer 5

minor duodenal papilla

Question 6

superior pancreaticoduodenal artery is a branch from the _

Answer 6

celiac trunk

Question 7

inferior pancreaticoduodenal artery is a branch from the _

Answer 7

superior mesenteric artery

Question 8

blood supply to the pancreas:

Answer 8

1. celiac trunk mostly (superior pancreaticoduodenal arteries)
2. superior mesenteric artery (inferior pancreaticoduodenal arteries)
3. multiple branches of splenic artery

Question 9

duodenum: section of SI extending from _ of stomach to _

Answer 9

extending from pyloric part of stomach to jejunum

Question 10

duodenum surrounds _ of pancreas

Answer 10

head

Question 11

duodenum begins rt of body’s midline and ends lt of the midline at level of lumbar vertebra 2 at the _

Answer 11

duodenojejunal flexure (jxn)

Question 12

duodenum is a mostly _ organ

Answer 12

retroperitoneal

Question 13

4 parts of duodenum

Answer 13

1. superior
2. descending
3. inferior (horizontal)
4. ascending

Question 14

descending part of duodenum: contains _ at which point the hepatopancreatic ampulla drains the bile duct and the main pancreatic duct into the duodenum

Answer 14

descending part of duodenum contains the major duodenal papilla

Question 15

descending part of duodenum: contains _ at which point accessory pancreatic duct drains into the duodenum

Answer 15

descending part of duodenum also contains minor duodenal papilla

Question 16

the 4 digestive organs and where their blood supply comes from

Answer 16

stom, SI, LI, and pancreas; blood supply comes from 3 branches of aorta: celiac trunk, sup mesenteric artery, and inf mesenteric artery

Question 17

hepatopancreatic sphincter prevents

Answer 17

reflux of duodenal contents back into duct (hepatopancreatic ampulla)

Question 18

duodenum blood supply (2)

Answer 18

1. gastroduodenal artery, via smaller named arteries

2. superior mesenteric artery, via smaller named arteries

Question 19

jejunum and ileum is a _ organ

Answer 19

intraperitoneal

Question 20

jejunum begins at _ in _ quadrant

Answer 20

duodenojejunal flexure in upper lt quadrant

Question 21

ileum ends at _ in _ quadrant

Answer 21

ileocecal junction in lower right quadrant

Question 22

jejunum and ileum together about _ feet long

Answer 22

20 feet long (60% of this being ileum)

Question 23

jejunum and ileum attach to _ wall by the SI mesentery (mesentery proper)

Answer 23

posterior abdominal wall by SI mesentery (mesentery proper)

Question 24

SI mesentery is a _ layer formed by:

Answer 24

double layer formed by 2 layers of visceral peritoneum that stretches up to and attaches to posterior abdominal wall; contains fat, blood vessels, and nerves that supply the wall of the intestine itself

Question 25

arterial blood supply of jejunum and ileum:

Answer 25

superior mesenteric artery

Question 26

venous drainage of jejunum and ileum:

Answer 26

superior mesenteric vein (to portal vein)

Question 27

LI: feats of the colon: (3)

Answer 27

1. teniae coli 2. haustrations 3. omental (epiploic) appendices

Question 28

LI: teniae coli

Answer 28

three longitudinal bands of smooth muscle

Question 29

LI: haustrations (haustra)

Answer 29

pouches of the wall of the colon btwn the teniae

Question 30

LI: omental (epiploic) appendices

Answer 30

small, fatty projections attached to one of the teniae coli bands

Question 31

LI cecum and appendix: cecum is a _ pouch continuous with the _ colon from which the _ extends

Answer 31

cecum is a large, blind pouch continuous with the ascending colon from which the vermiform appendix extends

Question 32

LI cecum and appendix: ileal orifice (w/ ileocecal valve)

Answer 32

opening of ileum into cecum

Question 33

LI: ascending colon spans from _ to _

Answer 33

from cecum to rt colic (hepatic) flexure

Question 34

LI: transverse colon spans from _ to _

Answer 34

from rt colic flexure to left colic (splenic) flexure

Question 35

transverse colon is suspended from the abdominal wall by _

Answer 35

the transverse mesocolon

Question 36

transverse colon arterial supply:

Answer 36

mostly the middle colic artery (a branch of the superior mesenteric artery)

Question 37

asc colon does not include

Answer 37

cecum

Question 38

appendix protrudes from _ and contains _ tissue

Answer 38

cecum (veriform) and contains lymphatic tissue

Question 39

LI: descending colon spans from _ to _

Answer 39

from lt colic flexure to pelvic brim (sigmoid colon)

Question 40

pelvic brim aka

Answer 40

pelvic inlet is where descending colon stops and sigmoid colon begins

Question 41

LI: descending colon passses over _

Answer 41

lateral border of lt kidney

Question 42

LI: descending colon arterial blood supply

Answer 42

branches of inf mesenteric artery

Question 43

transition point

Answer 43

where GI tract goes from being supplied by the sup mesenteric artery to inf mesenteric artery

Question 44

LI: sigmoid colon begins at _ and is _-shaped

Answer 44

begins at pelvic brim and is S-shaped

Question 45

LI: sigmoid colon becomes continuous w/ _ at _ vertebra 3

Answer 45

rectum at sacral vertebra 3

Question 46

LI: sigmoid colon is suspended by

Answer 46

sigmoid mesocolon

Question 47

LI: sigmoid colon arterial supply

Answer 47

branches of inferior mesenteric artery

Question 48

LI: rectum fixed segment of LI that extends inferiorly (mostly) from _

Answer 48

fixed segment of LI that extends inferiorly (mostly) from sigmoid colon

Question 49

LI: rectum follows the curve of the

Answer 49

sacrum and coccyx