Capillaries and Flow through Vessels (Flipped) Flashcards
1
Q
Why is movement across the blood brain barrier limited?
A
Due to tight junctions between endothelial cells.
2
Q
How wide is the diameter of the gaps between fenestrations?
A
50-60nm.
3
Q
How much fluid is filtered from the microcirculation into the tissue spaces per day?
A
8L.
4
Q
What is the role of the lymphatic circulation in maintaining blood volume?
A
It reabsorbs leftover fluid in the tissue spaces, and returns it to the blood.
5
Q
List 2 characteristic of lymphatic vessels.
A
1 - Thin-walled.
2 - Contain valves.
6
Q
List the Starling forces that act across capillary walls.
A
1 - Oncotic.
2 - Hydrostatic.
7
Q
Give an example of a condition that can result from an imbalance of Starling forces across a capillary.
A
Oedema.
