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Stomach cell
chief cell = makes pepsinogen
parietal cell = makes HCl
mucous cell = makes mucous
my question comes from G cell
one of the sources I have says G cell makes gastrin that stimulates parietal cells to make HCL.
But the other source I have says ECL cells make histamin that stimulates parietal cells to make HCL.
This 2nd source is saying that G cell makes gastrin that stimulates gastric secretion.
so which one is correct? Which one between ECL and G cell stimulates Pareital cell?
=====================================
My 2nd question is about kidney- Loop of Henle.
1) The combination of passive diffusion and active transport in the Loop of Henle of solutes helps in the conservation of water.
2) Birds have a long loop of henle, thus have concentrated urine.
Both of them are supposed to be true statement.
But I don't understand how.
According to my class lecture slide, it says
Loop of Henle- more soluete is reabsorbed than water.
This means urine is supposed to be more dilute.
But those two statements from DAT destroyer is saying as if the urine is supposed to be more concentrated.
which one is right?
chief cell = makes pepsinogen
parietal cell = makes HCl
mucous cell = makes mucous
my question comes from G cell
one of the sources I have says G cell makes gastrin that stimulates parietal cells to make HCL.
But the other source I have says ECL cells make histamin that stimulates parietal cells to make HCL.
This 2nd source is saying that G cell makes gastrin that stimulates gastric secretion.
so which one is correct? Which one between ECL and G cell stimulates Pareital cell?
=====================================
My 2nd question is about kidney- Loop of Henle.
1) The combination of passive diffusion and active transport in the Loop of Henle of solutes helps in the conservation of water.
2) Birds have a long loop of henle, thus have concentrated urine.
Both of them are supposed to be true statement.
But I don't understand how.
According to my class lecture slide, it says
Loop of Henle- more soluete is reabsorbed than water.
This means urine is supposed to be more dilute.
But those two statements from DAT destroyer is saying as if the urine is supposed to be more concentrated.
which one is right?
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