00:00
So where does bile
start in the body?
Well, take a look at our
picture there for a clue, right?
You see, that's a
close-up of the liver.
00:09
You see the hepatic biliary
system, that big green tube.
00:12
You see the gallbladder
tucked up underneath there.
00:15
Now, in a lot of drawings you'll see
the gallbladder completely separate
but that's not how
it looks in your body.
00:21
It's actually pretty tight
up underneath the liver.
00:25
So when they have to
remove the gallbladder,
they've got to separate
it from your liver tissue.
00:30
But where does it start?
Is it the liver?
Is it the gallbladder?
Is it the stomach?
Is it the pancreas?
Where is it?
Well, I know you already
know it starts in the liver,
but specifically it's
made by the hepatocytes.
00:45
So those little
tiny worker B cells.
00:49
Now take a look at the
picture I have for you there.
00:51
You see, you've got
a hepatocyte there.
00:54
You've got the canaliculi -
those little green stringy things,
then you've got the bile ducts.
01:00
So bile is created
by the hepatocytes.
01:03
It travels through the
canaliculi to make it
to the bile ducts
on the outside.
01:09
So the whole cell is
called a hepatocyte.
01:13
The canaliculi are what transports
the bile out to the bile ducts.
01:19
So the hepatocytes are
the makers of the bile.
01:21
They're the worker
B cells of the liver.
01:24
So they transport it with the
bile canaliculi to the bile ducts.
01:28
And remember bile flows
outward, blood flows inward.
01:33
So in the hepatocyte, blood
and bile flow opposite directions.
01:38
I want to talk to you
about how the bile travels
from these tiny little
hepatocytes, right?
See that?
In the circle, we've got that
blown up or magnified for you.
01:48
See that green arrow?
That's to remind
you that bile travels
to those canaliculi out to the outside
of the hepatocyte and into the bile duct.
01:58
Now those tiny branches of the bile
duct become the right in hepatic ducts.
02:03
That just means what
side of the liver they're on.
02:07
Okay, so hepatocytes
travels outward to the bile duct.
02:10
Those bile ducts connect
together through a network
to the right and left hepatic
ducts depending on their location.
02:17
Next up, you have the
common hepatic duct.
02:21
Now, why is it called that?
Because that's where
the right hepatic duct
and the left hepatic
duct come together.
02:28
That's why it has its name
common hepatic duct.
02:31
Now keep tracing that along.
02:33
Hepatocyte, you've got
the bile ducts right and left,
right and left come together
for common hepatic duct.
02:42
Then it joins to the
common bile duct.
02:45
Okay, why are we
spending time on this?
Because understanding the plumbing of
the hepatobiliary system is key to knowing
how to recognize danger signs in your
patient and knowing what to do about it.
02:58
Hepatocyte, get to the hepatic
ducts, the common hepatic ducts,
the common bile duct.
03:05
And again, what is that little
green structure under there?
Right? It's the gallbladder,
which is a storage place for bile.
03:14
Because when the bile flows
from the liver into the common duct,
into the common bile duct, the gallbladder
acts as a storage or a garage for the bile.
03:25
Okay, from the gallbladder, bile flows from
the gallbladder into the small intestine.
03:31
That's where it actually mixes
with the food for the first time.
03:35
So when I eat something, the
way bile gets down to that food
is it travels from the
liver to the gallbladder
down through the common bile duct
past my pancreas into my small intestine.
03:49
That's where the bile
starts to mix with the food
and do what it does
best - ripping things apart.
03:55
It's digestive functions.