Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards
share
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

USMLE

GI Anatomy

QuestionAnswer
what are the arteries that come off of the celiac trunk? splenic artery left gastric common hepatic
which arteries supply the greater curvature of the stomach? r/l gastroepiploic
which arteries supply the lesser curvature of the stomach? r/l gastric arteries
path of blood from the common hepatic artery gastroduodenal artery branches off. right gastric artery branches off. common hepatic continues as hepatic artery proper. R/L hepatic arteries branch off of that. cystic artery branches off of R hepatic artery.
where are there good, strong arterial anastomoses around the stomach? R/L gastroepiploics, R/L gastric arteries
where is there poor anastomoses to the stomach? short gastrics (seen when the splenic artery is blocked)
what causes esophageal varices? anastomoses between left gastric vein and azygous vein (portal-caval shunting)
what causes caput medusae? anastomoses between paraumbilical vein and inferior epigastric vein (portal-caval shunting)
what causes external hemorrhoids? anastomoses between superior and inferior rectal veins (portal-caval shunting)
what are the causes of portal HTN? prehepatic: portal/splenic vein obstruction (thrombosis) intrahepatic: cirrhosis, schistosomiasis, tumor posthepatic: CHF, pericarditis, Budd-Chiari syndrome (hepatic vein occlusion)
in addition to the occlusions that cause esoph varices, ext hemorrhoids, and caput medusae, what other portal-caval anastamoses occur? retroperitoneal vein to renal vein, retroperitoneal vein to paravertebral vein
where does the blood come from in the inferior epigastric vein? removes blood from liver via hepatic veins
falciform ligament connects contains liver to anterior abdominal wall, ligamentum teres
hepatoduodenal ligament connects contains additional info liver to duo portal triad (hepatic artery, common bile duct, portal vein) can be compressed b/w thumb and finger to slow bleeding (in epiploic foramen of Winslow)
gastrohepatic ligament connects contains additional info lesser curvature of stomach to liver, gastric arteries, separates R lesser and greater sacs, can be cut during surgery to access lesser sac
gastrocolic ligament connects contains additional info greater curvature of stomach to transverse colon. epiploic arteries in greater omentum
gastrosplenic ligament connects contains additional info greater curvature of stomach to spleen. no arteries. separates L greater and lesser sacs
splenorenal ligament connects contains additional info connects spleen to posterior abdominal wall. splenic artery and vein. none
layers of the digestive tract starting closest to lumen? mucosa (epithelium, lamina propria, muscularis mucosa) submucosa (contains submucosal/Meissner's plexus) muscularis externa (inner circular layer, myenteric/Auerbach's plexus, outer longitudinal) serosa
fxn of the lamina propria support
fxn of the muscularis mucosa motility
where is Meissner's plexus located? within the submucosa, between the muscularis mucosa and the inner circular layer of the muscularis externa
where is the Auerbach plexus located? between the inner circular and out longitudinal layers of muscle
fxn of Meissner's plexus regulates local secretions, blood flow, and absorption. contains cell bodies of some parasympathetic terminal effector neurons
fxn of Auerbach's plexus to coordinate the motility of the gut; contains cell bodies of parasympathetic terminal effector neurons
what are the abdominal layers? “PETTIE: don't be pettie about your abs” peritoneum extraperitoneal tissue transversalis fascia tranversus abdominus internal oblique external oblique
where are the only GI submucosal glands duodenum submucosa, they secrete alkaline mucus to neutralize acid
what are Brunner's glands glands in the duo submucosa that secrete alkaline mucus to neutralize acid. hypertrophied in peptic ulcer dz
what is the basal electric frequency of the stomach 3 Hz
what is the basal electric frequency of the duodenum? 12 Hz
what is the basal electric frequency of the ileum? 8-9 Hz
what is the pectinate line separates the hindgut from the part of the anus that is derived from ectoderm
pathology above the pectinate line internal hemorrhoids (not painful, visceral innervation) adenocarcinoma
blood flow above pectinate line superior rectal artery (branch of IMA) --> inferior rectal vein --> IMV --> portal system
blood flow below the pectinate line inferior rectal artery (branch off of pudendal nerve) --> inferior rectal vein --> internal pudendal vein --> internal iliac vein --> IVC
pathology occurring below pectinate line external hemorrhoids (painful, somatic innervation) squamous cell carcinoma
path of bile from liver bile enters R and L hepatic ducts --> common hepatic duct. flows into cystic duct to enter GB. flows out of GB to enter cystic duct, then common bile duct (inside hepatoduodenal ligament). common bile duct passes behind 1st part of duo and joins wit
what is the order (from lateral to medial) of the structures in the femoral triangle? femoral nerve, artery, vein
what is the order from lateral to medial of the structures in the femoral sheath? femoral artery, vein, deep inguinal lymph nodes (contained in canal) (femoral nerve is not in the triangle)
between what 2 structures does the rectus abdmoninus lie? transversalis fascia, transversus abdominus
describe the pathwway leading to an indirect inguinal hernia internal (deep) inguinal ring. external (superficial) inguinal ring. into scrotum (covered by all three layers of spermatic fascia)
where does the indirect inguinal hernia enter the external inguinal ring? lateral to the inferior epigastric artery
describe pathway of direct inguinal hernia enters at external inguinal ring (covered by transversalis fascia only)
what are the layers of spermatic fascia from deep to superficial? internal spermatic fascia, cremasteric fascia, external spermatic fascia
where doe the direct inguinal hernia enter the external inguinal ring medial to the inferior epigastric artery
where is the femoral hernia below and lateral to the pubic tubercle (women most commonly)
what is contained in Hesselbach's triangle? inferior epigastric artery, lateral border of inferior rectus, inguinal ligament
Created by: Asclepius