Which of the following fluids are part of the vascular system in our body?
Blood
Lymph
Blood and lymph are the fluids which are part of the vascular system.
The Purkinje fibres are found in the sub-endocardium. They are specialised conducting fibres, which extend from the interventricular septum to the papillary muscles, and up the lateral walls of the ventricles.
Fibrin is a tough protein substance that is arranged in long fibrous chains; it is formed from fibrinogen, a soluble protein that is produced by the liver and found in blood plasma. It is produced in response to bleeding and is the major component of blood clots.