Lymph organs include the bone marrow, lymph nodes, spleen, and thymus. Bone marrow contains tissue that produces lymphocytes. B-lymphocytes (B-cells) mature in the bone marrow. T-lymphocytes (T-cells) mature in the thymus gland.Other blood cells such as monocytes and leukocytes are produced in the bone marrow. Lymph nodes are areas of concentrated lymphocytes and macrophages along the lymphatic veins.ome lymphocytes migrate to the thymus and become T cells that circulate in the blood and are associated with the lymph nodes and spleen. B cells remain in the bone marrow and develop before moving into the circulatory and lymph systems. B cells produce antibodies. Macrophage Attacking E.coli (SEM x8,800).
Neonatology is a subspecialty of pediatrics that consists of the medical care of newborn infants, especially the ill or premature newborn infant. It is a hospital-based specialty, and is usually practiced in neonatal intensive care units (NICUs).
The doctor will listen to your heart and lungs; check your eyes, ears, and throat; and make sure everything is working right on the inside and outside of your body. If you are sick or in pain, the doctor will examine you to figure out what is wrong. Sometimes he or she will perform special tests to learn more about what is happening in your body. Then, he or she will make a treatment plan to help you get better. Grown-ups visit the doctor, just like children do. Children often see a doctor called a pediatrician. A pediatrician is a special kind of doctor who takes care of children and works with parents to keep kids healthy.