Thrombosis and embolism often gets confused, remember this, a thrombus is a blood clot that forms in a blood vessel. If a thrombus (blood clot) breaks free and travels through the bloodstream to another part of the body, it is now an embolus. By: https://www.instagram.com/p/CeEw2MdujX-/?igshid=YmMyMTA2M2Y=