The video shows a close-up of a blood vessel. The vessel is colored red and blue, with the red representing the oxygenated blood and the blue representing the deoxygenated blood. The vessel is surrounded by a pinkish background, which is likely the surrounding tissue. The video zooms in on a specific section of the vessel, where a plaque is visible. The plaque is brown and appears to be hardened and calcified. The video provides a detailed view of the plaque, showing its texture and composition.