¿Qué es una costra?

The video explains the formation and function of scabs. It begins by introducing scabs as a common occurrence from injuries like scrapes and scratches. The video then delves into the components of blood, highlighting the roles of red blood cells, white blood cells, and platelets. It explains how platelets are crucial in forming scabs to stop bleeding and protect the wound. Finally, the video describes how scabs aid in the healing process by allowing new skin cells to grow, eventually leading to the scab falling off and the skin being repaired.

Describe the process that occurs under a scab after a cut.

What happens to a scab after it has done its job?