Pancreas Flashcards
anterior
stomach, transverse mesocolon, superior mesenteric artery
posterior
left kidney
left adrenal gland
AA
IVC
L&R renal veins
R renal artery
sup mesenteric vessels
splenic vein
hepatic portal vein
superior
splenic artery, stomach
inferior
SI
jejunum
transverse colon
right
duodenum curve
left
spleen
two roles
endocrine
exocrine
endocrine
1%
specialised cells: cells of langerhans, pancreatic islets are found distributed
do the islets have ducts
no
hormones diffuse directly into the blood
what hormones regulate glucose blood levels
glucagon and insulin
exocrine
99%
large number of lobules make up acini
walls are composed of acinar cells (secretory cells)
acinar cells
secrete pancreatic juice
each lobular is drained by a tiny duct which unites to form the pancreatic duct, extending and opening into the duodenum
before entering the duodenum, the pancreatic duct joins with the common bile duct to form the hepatic-pancreatic ampulla
what is the duodenal ampulla controlled by
hepatic-pancreatic sphincter
exocrine function
produce pancreatic juice which contains enzymes, inactive precursors
what does parasympathetic stimulation do
increase secretion