Thrombosis ( Greek : θρόμβωσις ) is the formation of a blood clot ( thrombus ; Greek : θρόμβος ) inside a blood vessel , obstructing the flow of blood through the circulatory system .
Thrombosis ( Greek : θρόμβωσις ) is the formation of a blood clot ( thrombus ; Greek : θρόμβος ) inside a blood vessel , blocking the flow of blood through the circulatory system .