the inside of a blood vessel with lots of red blood cells

Prompt 1: displays the inside of a blood vessel where red blood cells are flowing. the red blood cells are shown moving through the vessel, and some of them are seen sticking together. provides a visual representation of the blood flowing through the blood vessels.

Prompt 2: a blood clot being formed in a blood vessel, with red blood cells and platelets forming a clot. the clot is then shown breaking apart, causing the blood to flow freely again.