disturbances of circulation

Question 1

generalized passive venous congestion

Answer 1

• backward heart failure- heart cannot cope with venous return
  -left ventricular failure- congestion in lungs
• right ventricular failure- congestion in systemic venous system

Question 2

FATE OF A THROMBUS

Answer 2

1. propagation-grow by accumulating platelets
   2.Embolization- dislodge and travel to other sites
2. dissolution- by fibrinolysis
3. organization and recanalization-older thrombi organised to restore blood flow

Question 3

FATE OF A THROMBUS

Answer 3

1. propagation-grow by accumulating platelets
   2.Embolization- dislodge and travel to other sites
2. dissolution- by fibrinolysis
3. organization and recanalization-older thrombi organised to restore blood flow

Question 4

Complications of thrombus

Answer 4

-infarction
-oedema and congestion
-embolism
-infection

Question 5

Factors determining extent and severity of ischaemia

Answer 5

1 blood supply
2 rate of onset of ischaemia
3 degree of vascular obstruction
4 nature of tissue