Changes

{{unfinished}}

{{unfinished}}

Haemostasis  is the normal spontaneous arrest of bleeding from ruptured blood vessels. Normal haemostasis depends on a combination of events:

Haemostasis  is the normal spontaneous arrest of bleeding from ruptured blood vessels. Normal haemostasis depends on a combination of events: the vascular response, which occurs mainly at capillary and small vessel level, the platelet (or thrombocyte) response, which also occurs in capillaries and small vessels, and the blood coagulation response which takes place in the arteries and veins.

#* Mainly at capillary and small vessel level.

==Vascular responses==  

# '''Platelet (thrombocyte) responses'''.

#* In capillaries and small vessels.

# '''Blood coagulation response'''.

#* In arteries and veins.

==Vascular responses==

* There are several possible vascular responses, of which one or more may be recruited in normal haemostasis.

* There are several possible vascular responses, of which one or more may be recruited in normal haemostasis.

** '''Vascular contraction'''.

** '''Vascular contraction'''.