GI Tract Flashcards
Muscle fibers of the esophagus
Striated upper 3rd
Smooth lower
Commencent of esophagus
Laryngopharynx @ C6
Termination of esophagus
Esophagogastric junction @ T10
3 constrictions of the esoph
Cervical
Thoracic
Diaphragmatic
Anterior to the rsoph
Post surface of liver left lobe
Posterior to the esoph
Left crus of diaph
Esoph’s relation to vagus
LARP
Bld supp of esoph
Left gastric
Venous drain of esoph
Left gastric vein (to portal vein)
innervation of esoph
sympa branch from sympa trunk
ante and poste gastric nerve
lymph drainage of esoph
left gastric node
this serves as the physio gastroesopageal sphincter
circular smooth muscle
sphincter closure is under ____ control and is augmented by ____
vagal/vagus
gastrin
the stomach mucous membrane is thrown into numerous folds called
rugae
the muscular wall of teh stomach ia mde up of
longi, circular, oblique fibers
the stomach can store up to _____ of food
1.5 L
the stomach mixes food with f=gastric secretionsto form
chyme
openings of the stomach
cardiac
pyloric
thisforms the anatomic sphinceter at the pyloric orifice
circular muscle coat
two curvatures of the stomach
greater
lesser
extends from upper prat of teh greater curvature to the spleen
gastrosplenic ligament
from lower part of greater curvature to the trasnverse colon
greater omentum
suspends the stomach to the liver
lesser omentum
parts of the stomach
fundus
body
pyloric antrum
pylorus
dome shaped, full of gas and project upward to the left of the cardiac orifice
fundus
extends from level of cardiac orifice to the incisura angularis
body
the body of the esophagus extends from the level of the cardiac orifice to the ______
incisura angularis
this part of the stomach extends from incisura angularis to the pylorus
pyloric antrum
the lower limit of the body of teh stomach
incisura angularis
most tubular part of the stomach
pylorus
pylorus cavity
pyloric canal
anterior to the stomach
anterior abdominal wall left costal amrgin left plaeura and lung diaphragm liver left lobe
posterior
lesser sac diaphragm spleen left suprarenal gland upper part of left kidney splenic artery pancreas transverse colon
blood supp of stomach
left gastric right gastric short gastric left gastroeiploic right gastroepiploic
left gastric artery is from
celiac artery
right gastric artery is from
hepatic artery
short gstric artery is from
splenic artery
the left gastric artery supplies what
lower 1/3 of espoh and upper right part of stomach
the rght gastric artery supplies
lower right of stomach
the short gastric artery supplies
fundus
the fundus is supplied by the
short gastric from splenic artery
artery that supplies lower right part of stomach
right gastric frolower m hepatic
supplies the 1/3 of esoph and upper right part of stomach
left gastric artery
the left gastroepiploic artery is from
splenic
the right gastroepiploic artery is from
hepatic artery (gastroduodenal branch)
left gastroepiploic artery supplies
stomach along upper part of greater curve
right gastroepiploic artery supplies
stomach along lower part of greater curve
lower part of greater curve is supplied by
right gastroepiploic
upper part of greater curve is supplied by
left gastroepiploic
venous drainage of stomach
left and ight gastric vein
splenic
sup mesenteric
the left adn right gastric artery drain into
portal vein
the short gastric and left gastroepiploic vein drain into
splenic vein
right gastroepiploic vein drains into
superior mesenteric vein
the lymph nodes drain into the
celiac nodes and celiac artery root
nerve supply of stomach
sympa fibers (from celiac plexus)
parasympa fibers (vagus)
ant. vagal trunk
poste. vagal trunk
in the stomach, the vagus is _______ to ______ and ____ to _____
secretomotor to gastric glands
motor to stomach muscular wall
formed in the thorax from left vagus nerve
anterior vagal trunk
formed in thorax from right vagus nerve
posterior vagal trunk
hepatic branch passes to the liver, with pyloric branch pass down to the pylorus
ante. vagal trunk
which branch of ante vagal trunk passes to the liver
large hepatic branch
which branch of the ante vagal trunk pass down to the pylorus
pyloric branch
