Abdominal Vessels Lab

Question 1

Celiac trunk branches

Answer 1

common hepatic

L gastric

splenic

Question 2

Celiac trunk sub-branches

Answer 2

common hepatic

hepatic a. proper and gastroduodenal (R gastric and R gastro-epiploic)

L gastic

splenic

short gastric, L gastro-epiploic

Question 3

Superior mesenteric a.

branches

Answer 3

middle colic

right colic

ileocolic (appedicular branch)

Question 4

Why does it make sense that the superior mesenteric artery gives off the R colic artery?

Answer 4

superior mesenteric artery supplies midgut

midgut (including proximal 2/3 of colon) located on right side

Question 5

Inferior mesenteric a. branches

Answer 5

L colic a.

sigmoid arteries

superior rectal a.

Question 6

Why does it make sense that the inferior mesenteric artery gives off the L colic artery?

Answer 6

inferior mesenteric a. supplies hind gut

this includes distal 1/3 of colon, sigmoid, and rectum, which are located on the left side

Question 7

What are circular folds?

Answer 7

folds found in luminal surface of jejunum that are not found in luminal surface of ileum

Question 8

Circular folds function

Answer 8

increase surface area in jejunum

more substance present to be absorbed, less in ileum so we don’t need that much surface are there

so ileum has no folds

Question 9

Splenic vein branches

Answer 9

splenic

superior mesenteric

inferior mesenteric

Question 10

Divisions of pylorus

Answer 10

antrum (area where it narrows)

canal

sphincter

Question 11

Folds inside stomach

Answer 11

rugae

Question 12

Sliding hiatal hernia

vs

paraesophageal (rolling) hernia

Answer 12

sliding: cardia protrudes through diaphragm
rolling: fundus protudes through diaphragm (often anteriorly)

Question 13

Duodenal cap

Answer 13

section right after pylorus

especially suceptible to ulcers

highly acidic stomach contents

Question 14

Peyer’s Patches

location

Answer 14

ileum

Question 15

Teniae coli

Answer 15

longitudinal muscle fibers on colon

Question 16

Haustra

Answer 16

sacs between tiniae

Question 17

Epiploic appendages

Answer 17

small sacks of fat covered with peritoneum

Question 18

Ileocecal valve

Answer 18

not true valve

Question 19

Ulcerative colitis

Answer 19

severe inflammation and ulceration of colon and rectum

may require colectomy

Question 20

Colostomy

Answer 20

establish opening between various parts of colon and anterior abdominal wall, creating artificial anus

Question 21

Marginal artery

Answer 21

single arterial trunk that begins at ileocolic junction and ends where it anastomoses with superior rectal artery

Question 22

Hepatic portal vein

components

Answer 22

splenic

inferior mesenteric

superior mesenteric

Question 23

Caput medusae

Answer 23

engorgement of epigastric veins producing varicose veins around umbilicus

Question 24

Portal triad components

Answer 24

hepatic artery proper

hepatic portal vein

hepatic bile duct