marrow是什么意思，marrow翻译

marrow是什么意思，marrow翻译

Marrow: The Essence of Life

Marrow, the soft, spongy tissue that fills the cavities of bones, is a vital part of the human body. It is the main site of new blood cell production, a process known as hematopoiesis. Without marrow, our bodies would not be able to generate the red and white blood cells necessary for survival.

There are two types of marrow: red and yellow. Red marrow is found in the flat bones of the skull, the ribs, the vertebrae, and the pelvis. It is responsible for producing red and white blood cells, as well as platelets. Yellow marrow, on the other hand, is found in the long bones of the arms and legs, and it mainly consists of fat cells. Although it does not play a direct role in blood cell production, yellow marrow is still an important energy source for the body.

Marrow transplantation, also known as hematopoietic stem cell transplantation, is a medical procedure used to replace damaged or destroyed marrow. This procedure is often used to treat patients with leukemia, lymphoma, or other bone marrow disorders. During a marrow transplant, stem cells from a compatible donor are infused into the patient's bloodstream, where they travel to the bone marrow and begin producing new blood cells.

The process of marrow donation is relatively simple and painless. Donors are usually asked to donate through a process called apheresis, in which blood is drawn from the donor's vein and passed through a machine that separates the stem cells from the other components of the blood. The stem cells are then collected and frozen until they are ready to be transplanted into the recipient. The remaining blood components are returned to the donor's body.

recipients of marrow transplants often require extensive medical treatment and monitoring. The transplant itself can be associated with serious side effects, such as graft