Blood is one of those under-appreciated things. It continuously circulates the body delivering oxygen and nutrients to where they need to be, and removing things that shouldn’t be there. The heart pumps it around and has been doing so without fail, since you were about minus 34 weeks old (ie. a very young fetus). Haemostasis is the balanced interaction of blood cells, blood vessels and plasma proteins. This post will look at how the body reacts in response to injury to the endothelium of a blood vessel and what are some potential consequences of this.