Transcript Digestive System

The small intestines and the first 2/3
of the large intestine are supplied
with blood by what artery?
The Superior Mesenteric Artery
The Superior Mesenteric artery
branches into what arteries?
The mesenteric arteries.
Name the first branch off the
aorta below the diaphragm
The celiac artery
The celiac artery branches into
what three arteries?
The gastric, splenic, and hepatic
arteries.
What organs do these arteries supply
blood to?
The gastric supplies blood to the
stomach, the splenic supplies blood
to the spleen, and the hepatic
supplies blood to the liver.
Are there celiac, inferior, and
superior mesenteric veins that empty
directly into the vena cava?
No. The celiac, inferior, and
superior mesenteric veins empty
into the Hepatic Portal System.
What is this thin shiny
watery mesh-like
membrane?
Mesentery
Name this red blood vessel.
Mesenteric artery
Name this yellow stained
blood vessel.
Mesenteric vein.
What does the Hepatic Portal System
empty into?
The liver
The large yellow vein that the
mesenteric veins empty into is
called?
The Hepatic Portal Vein
What are the special
macrophages in the liver that
phagocytize debris and bacteria
and also cleanse the blood?
Kupffer cells which prowl the
walls of the liver sinusoids.
What artery takes blood the the last
1/3 of the Large intestine?
The inferior mesenteric artery.
Products of digestion that are filtered
through the Hepatic Portal System are
said to be?
Blood-borne
What products of digestion are
Blood-borne?
Amino acids, monosaccharides,
disaccharides, etc.
In the small intestine, name the
finger-like projections that
increase the surface area for
absorption of nutrients.
Villi (singular villus)
Each villus contains a capillary
bed and what other structure?
A lacteal, a dead-end
beginning of a lymphatic
vessel.
What is the function of the lacteal
within the villus?
Lacteals absorb excess interstitial
fluid and are responsible for
picking up and transporting the
products of fat digestion.
What are the products of fat
digestion?
Monoglycerides, diglycerides,
glycerol, cholesterol, etc.
What structure do the products of fat
digestion originally become?
Chylomicrons--packages of fatty
things surrounded by a transport
protein
Chylomicrons are made by the brush
border cells and exported to what
dead-end vessels?
Lacteals. What larger and larger
vessels do lacteals empty into?
Lymphatic vessels
The lymphatic fluid in these
vessels passes through what
structures?
Lymph nodes
What is the name of the large
sinus that the lymphatic vessels
eventually empty into?
The cisterna chylii
The ciserna chylii is the beginning
of what main duct in the lymphatic
system?
The thoracic duct
The thoracic duct empties into
what vessel?
The left subclavian vein
From the left subclavian vein,
trace the path of the blood en
route to the heart
The left subclavian vein empties into
the left brachiocephalic vein, which
empties into the superior vena cava,
which empties into the right heart.
What organ filters the lymph-borne
products of fat digestion?
None. Products of fat digestion go
straight into the bloodstream.
How do we refer to the products of
fat digestion?
As lymph-borne