Haemostasis

Question 1

What Is thromboembolism?

Answer 1

abnormal clot formation

Question 2

Thrombus

Answer 2

clot attached to the vessel

Question 3

Emboli

Answer 3

free floating clot

Question 4

Name an anti-platelet drug and what it does

Answer 4

Aspirin - impairs aggregation of platelets and reduces ability to adhere to sub-endothelial components

Question 5

Name an anticoagulant drug

Answer 5

Heparin

Question 6

Why does the clot not spread across the whole vessel?

Answer 6

Healthy endothelium secretes nitric oxide which inhibits adhesion prostacyclin which does the same but also stops aggregation.