Why Do Bruises Change Colors?

The video humorously explores what happens when someone walks into a bar and gets a bruise. It explains the science behind bruises, detailing how they form due to broken capillaries and the subsequent leakage of blood. The video describes the progression of bruise colors from red to blue, green, yellow, and brown, as the body breaks down hemoglobin and reabsorbs its components. The process involves various compounds like heme, bileverdin, and bilirubin, with the final stages leading to the bruise's disappearance.

What causes the initial reddish color of a bruise?

• The presence of bileverdin

• The breakdown of bilirubin

• The presence of red iron-carrying hemoglobin

• The formation of hemosiderin

Which compound is responsible for the brownish color in bruises?

• Hemosiderin

• Bilirubin

• Globin

• Bileverdin

What is the green compound that forms during the breakdown of a bruise?

• Globin

• Bileverdin

• Hemosiderin

• Bilirubin

Which enzyme breakdown product turns a bruise yellow?

• Globin

• Bilirubin

• Hemosiderin

• Bileverdin

What happens to bilirubin after it is formed in a bruise?

• It is reabsorbed into the bloodstream

• It is processed by the liver and excreted

• It remains in the bruise indefinitely

• It turns into hemosiderin