What causes blockage of an artery by a blood clot that has traveled in the bloodstream?

Is the pulse caused by the expanding and narrowing of the artery walls? Why is taking care of your teeth and gums important? What is a common way that HIV is transmitted? Is drinking milk when you're lactose intolerant bad for you? Is it necessry to retract my newborn's foreskin? Is the tendon bone supposed to move around? White dot on some of your pimples what does this mean? What time can construction start in the morning phoenix? My 1st molar on the bottom is missing can the back teeth be moved forward to fill that gap? Do you put a hot oil treatment on with a conditioner? Is the natural law literally engraved in every human heart? What letter represents the vein? What is the celleberum? Is swelling in the lower back common in later stage of pregnancy? Is usually the first step of treatment for an emotional or mental health problem? Are arteries thicker and stronger than veins and have two major properties? Is chalk a normal craving? Can you take extra strength tylonal during your pregnancy? What type of carbohydrates helps maintains normal glucose levels? Which is the only part of the tooth visable to the eye?