Gross Anatomy of the Paraalimentary Tract Flashcards
What kind of gland is the parotid?
serous –> digestive enzymes
What is the primary enzyme in the parotid?
alpha amylase
What nerve provides p/s innervation of parotid?
CN 9
Does the facial nerve innervate any part of the parotid gland?
no
What muscle does the submandibular sit next to?
mylohyoid
What kind of glands are submandibular and sublingual?
mixed
What nerve innervates the submandibular and sublingual?
facial nerve
Remnant of umbilical vein
round ligament of liver
What are the anatomic lobes of the liver?
right and left (left is smaller), caudate, quadrate
3 structures in the porta hepatis?
right and left hepatic bile ducts, proper hepatic artery, hepatic portal vein
Into what structure do hepatic veins drain?
IVC
What is the delivery point of nutrient rich blood to the liver?
hepatic portal vein
Anatomic division of the liver
round ligament/falciform split liver into unequal left and right lobes –> caudate/quadrate are anatomically part of the right lobe
What is the functional border of the liver?
plane through the IVC and gall bladder–> equal right and left lobes w/quadrate and caudate in left side of liver –> defined by bial drainage
What percent of liver blood supply is provided by hepatic artery vs portal vein?
25 vs 75%
What is the spiral valve?
regulates bile flow in the cystic duct in both directions
Most commonly, the cystic artery is a branch of the _____ artery.
right hepatic
In most individuals, what structures bound the triangle of Calot?
common hepatic duct, cystic artery, cystic duct
3 anatomic parts of gall bladder
infundibulum (hartmann’s pouch), neck, body, fundus
What is a common site of where gallstones lodge thereby compressing the cystic duct?
infundibulum
4 anatomic parts of pancreas
secondary retroperitoneal: head, neck, body
intraperitoneal: tail
Blood supply to head of pancreas
superior/inferior pancratico-duodenal arteries
Blood supply to neck, body, tail of pancreas
splenic artery
What structures sit between the two buds of the pancreas?
SMA, and SMV
What two structures form the portal vein?
splenic vein, SMV (w/imv drainage)
Dilation resulting from portal hypertension results in what three clinical features?
retrograde flow: esophageal varices, caput medusa, hemorrhoids
4 sites of porto-caval anastomoses
esophageal, paraumbilical, rectal, retroperitoneal
Blood supply to appendix
appendicular branch of ileocolic artery
