6- gastic motility and pancreatic fuction Flashcards
role of antum in stomach
contains external obliqu menaing there is perislic waves
how frequent a perisalic rhym
3/min
is perislic frymth fast or slow
slow
is perisly rythum sponanoues
yes
how do the action potenal occur
wave goes form sub thal to throald, longer in therlado, more ap, more stenght
what is the role of gastin
increase contraction
what happens if there is high distension of the stomach wall
more increaed contraction
what is normal resing mv for pacemaker cells
-60mv
what nerutalio of acid in dueodum
bicarobnte
where is bicarubide secred form
brunners gladn duct cells (in stomac)
Duct cell (in pancrease)
what does acid in teh dudeum triccer
long and short refleus - hco3 secteion
relase of secreting form s cells - co3 sectrin
where are s cells found
in the duodenum
what hapens when the acid s neutised fors ecretin
it is inhibited
where is secretin realed form
s cells
what does secretin lead to
hco3 secterio from pancreas and liver
pincter which controal bile duct and pancreatic duct
spidicter of oddi
role of acsory pancratic duct
if the priamry duct gets blcked stoped pancre destying itself
where is the duodenal paillar
on descending part of dudenum
role of acini
produce pancrei jucie carried by intercolled ducts
role of alph cells pancrease
serete glucagon
roel of betacells pancrease
secrete insulin
role of acini cells
sectre enzymes
wher are teh alpha and beta cells found
pancreatic islaet (conencte to vein
wher are the acini cells found
lobule, conencted to the pancreatic duct
endociner portion of pancreas
pancreied islests, to produce insula and glucatio and somatisn
somatostain roel
control the section fo insuin and glucaon
what the roel fo exine protio
acinar cell seciotn of enzymes
what cehcia are sectend by duct cells
bicarbonate
what are zymogne granues
they are cells that are only acivaed in the duduenm
what ishte fucntion of entero kinase
converes trypisonge to trypisn
what does trypsin do
converal all other zymoget to acive form
where is enterokinease foudn
on the brush boder of duodneal enregy
fucntion of protease
cleaves peptide bons
function of nucelaes
hydrolyes dna/rna
function of elasteaes
collagen digestion
fucntion fo phosphlpaes
phosphlipds to fatty acids
function of lipase
triglycerids to fatty acids and glycerol
fuction of a amylase
star to maltose and glucose
what is the precure to trypen
tripsyingern, which is convered to tyrein by mmembne bond entercase in the epithl cells of the dudenum
what is released in stomaic if ther is fat
cck - cholecystokinin
what stimues zymogens sectieonr
cholecyystokink
