In your own words, describe three different components of blood and what they do.
1. Red blood cells: Red blood cells, also known as erythrocytes, are responsible for carrying oxygen from the lungs to all parts of the body. They contain hemoglobin, a protein that binds to oxygen and transports it through the bloodstream. Red blood cells also help remove carbon dioxide, a waste product of cellular metabolism, from the body.
2. White blood cells: White blood cells, also called leukocytes, are an essential part of the immune system. They help the body fight off infections by attacking bacteria, viruses, and other harmful pathogens. White blood cells are produced in the bone marrow and can be divided into different types based on their specific functions, such as neutrophils, lymphocytes, and monocytes.
3. Platelets: Platelets are small cell fragments that play a crucial role in blood clotting and wound healing. When a blood vessel is injured, platelets rush to the site to form a clot and stop the bleeding. They release chemicals that trigger the clotting process and help seal the wound. Platelets also contain growth factors that promote tissue repair and regeneration.