What carries materials that fight blank and heal wounds?

The materials that fight infections and heal wounds are primarily carried by blood, specifically through components like white blood cells and platelets. White blood cells are crucial for the immune response, helping to identify and destroy pathogens, while platelets play a key role in blood clotting and tissue repair. Additionally, plasma, the liquid portion of blood, transports nutrients and proteins that support healing processes. Together, these components work to protect the body and promote recovery from injuries.