Phys 9 Flashcards
1
Q
What organ produces TPO?
A
the liver (a little kidney action too)
2
Q
Platelets contain…
A
- Actin and myosin (cell contracts, empties vesicles)
- Mitochondria
- Remnants of the ER (CA2+ storage)
- COX1 (thromboxane A2)
- Fibrin stabilizing factor (clot stability)
- Platelet derived growth factors (repair)
- Serotonin (5-HT)
3
Q
Platelet Cell membranes express…
A
- Glycoproteins
- Phospholipids
- Receptors for collagen
4
Q
What is the role of platelet derived growth factor?
A
-stimulate fibroblast to grow in the area, and they differentiate into smooth muscle
5
Q
Where does tissue plasminogen activator come from?
A
released by damaged tissue