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Know About Ulcers Blog

Digestion_Humans_Mouth2Stomach w- Interpreter


So for your digestive system you’re probably most familiar with yours simply taking in food and pushing it through
the system with systematic breakdowns of
the macromolecules and so on as we go and what we look for is these kind accessory
types of organs in your mouth you have
salivary glands of course and then associated with your small intestine and stomach we’re gonna see gallbladder
liver and pancreas contributing to the process as well the other key feature for your system is we
prevent back flow of food and we do that using sphincters — so sphincters are round
muscles that are going to close off – you see one here
at the end of your esophags beginning of your
stomach and then one between your stomach and your
small intestine so we’re going to regulate flow
of food with the sphincters – they’re going to open and close as need be to let things move
through the system and the thing with the sphincter particularly
between your stomach and small intestine is
we don’t want food moving out of your stomach too quickly it needs to go through
some grinding and chemical breakdown before it can actually move into the small
intestine so this is a regulatory mechanism in your mouth of course we have salivary
glands you produce about 1 1/2 liters of saliva per
day saliva is a bout 99% water and it’s going to also have some ions and
buffers and antibodies and digestive
enzymes and so on this will actually start to break down food
through a process we know as mastication this is a fancy word for chewing mom always says to chew your food! do it!! this starts the process of digestion —
and then salivas other role here is to actually
clean your teeth this does not substitute for a toothbrush!!
however it does help us keep bacteria to a
minimum in our mouth the pharynx is actually going to be full of
muscle this connection from your mouth to your esophagus – so the
pharynx is in between is actually helping us to move food down so
when you swallow do a big swallow — you can feel your throat
moving that’s what’s moving your pharynx is
squeezing and pushing things down into your esophagus your esophagus connects between the your
pharynx esophagus in between and then ends at your stomach you notice that your esophagus is only about
0.8 inches in diameter so less than an inch this is important because it’s very stretchy it needs to be so we can actually go through
something known as peristalsis which is the contraction of muscles to help
move food down into your stomach and that
squeezing of the muscles will be less effective if that opening is larger
so this really is to control and help move
things down into your stomach quickly — your stomach
itself is full of folds known as rugae these folds actually allow your stomach to
expand and hold about ½ gal this may not seem like a lot to you but the next
time you have 1/2 gallon container in your
house – hold it up to your body!! that’s how big your stomach can get now yes
depending on the individual they may be able to hold much more than that but for most of
us that’s what we’re looking at here are those rugae that I mentioned all
these folds and wrinkles inside our stomach
they actually allow it to expand the sphincter we were talking about earlier
that’s going to control movement from your
stomach your small intestine is this one right here the pyloric sphincter –
pyloric is stomach so that’s what we mean there the stomach of course is going to do some
tempory storage for us it’s going to help this
mix things up it will do some absorption but primarily it’s only things like alcohol – we are
not absorbing other macromolecules very well or any
monomers even very well through here — the
digestive proteins will start because it turns out that this is a long process to digest
proteins so we have to actually start that pretty early on the stomach has to protect itself because as
we’ve talked about the pH of the stomach is about 2.0 – so the stomach as to protect
itself and it does that by lining itself with a secreted mucus and that mucus is actually going to coat and
protect the inside of your stomach so that you
don’t eat your own stomach!! what happens if that mucus layer doesn’t work right or isn’t produced properly what happens?? you develop an ulcer so this is literally your stomach acid that
hydrochloric acid that is going to maintain this pH of 2.0 — so pepsin can
actually work properly and breakdown
proteins in your stomach but in its absence of this mucus this ulcer
forms and this is literally your HCl in your
stomach eating your stomach wall of course this is a very bad thing!

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