Exchange and the Lymphatic System Flashcards
1
Q
Where would you find capillaries with no clefts and no channels?
A
The brain
2
Q
Where would you find capillaries with clefts only?
A
Muscles
3
Q
Where would you find fenestrated capillaries?
A
Intestines
4
Q
Where would you find discontinuous capillaries?
A
The Liver
5
Q
What two components to a blood clot must occur?
A
Formation of both a platelet plug and a fibrin clot
6
Q
What is a platelet plug
A
Attraction of platelets to collage at exposed area of damage
7
Q
What is a fibrin clot?
A
Caps the platelet plug
8
Q
What ways can the endothelium prevent clotting?
A
- Produces prostacyclin and NO
- Produce TFPI
- Expresses throbomodulin
- Expresses heparin
- Secretes t-PA
9
Q
What are the causes of oedema?
A
Imbalance of Starlings forces:
- Lymphatic obstruction
- Raised CVP
- Hypoproteinaemia
- Increased capillary permeability
10
Q
What are Starlings forces?
A
Balance between both the hydrostatic and oncotic pressures of the ECF and ICF
