ANATOMY

Detailed explanation-1: -Red bone marrow contains blood stem cells that can become red blood cells, white blood cells, or platelets.

Detailed explanation-2: -Platelets are made from very large bone marrow cells called megakaryocytes. These are formed in the myeloid part of the tree. When megakaryocytes break apart, they form more than 1000 platelets each.

Detailed explanation-3: -Most red blood cells, platelets, and most white blood cells form in the red bone marrow. Yellow bone marrow produces fat, cartilage, and bone. White blood cells survive from a few hours to a few days, platelets for about 10 days, and red blood cells for about 120 days.

Detailed explanation-4: -Red blood cells carry oxygen to tissues in the body. Platelets stop bleeding by helping blood clot. White blood cells fight infections.