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).
In this article. One of the many things you need to do to prepare for your little one's arrival is to choose a doctor to oversee his or her health care. A pediatrician is medical doctor who manages the physical, behavioral, and mental health of children from birth until age 21.n caring for your child, a pediatrician will: 1  Do physical exams. 2  Give your child recommended immunizations. 3  Make sure your child is meeting developmental milestones in growth, behavior, and skills. 4  Diagnose and treat your child's illnesses, infections, injuries, and other health problems.