Zusammenfassung der Ressource
CAPILLARIES
Anmerkungen:
- Arteries branch into arterioles which further branch into capillaries. From the capillaries the blood reaches the tissues.
- form a network throughout every tissue
in the body except the cornea and
cartilage.
- CAPILLARY BEDS
- walls are extremely thin
- single layer of endothelial cells
- enough for one RBC at
a time to squeeze
through
- tiny gaps between the individual
cells that form the epitheliuem
- allows some components
of blood to seep through
- These form tissue fluid
- Blood loses a great deal
of it's original pressure by
the time it reaches
capillaries
- when it enters the
capillaries, the blood
pressure is around 35mm
Hg
- by the time it reaches the far
end of the capillary the
blood pressure will have
dropped to 10 mm Hg