lower or hindmost part of the brain; continuous with spinal cord; (`bulb' is an old term for medulla oblongata); "the medulla oblongata is the most vital part of the brain because it contains centers controlling breathing and heart functioning"
part of the brain adjacent to the spinal cord; controls breathing and muscle tone
The hollow, rounded cells which are found along the center of the main axis of a fiber They may run continuously along the length of the fiber Fibers with a central core made up of air-filled cells Because medullated fibers are coarser, they should be kept separate from other fiber
The inner substance of various organs and structures, especially the marrow of bones
The marrow of bones; the deep or inner portion of an organ or part; as, the medulla, or medullary substance, of the kidney; specifically, the medula oblongata
Also known as the medulla oblongata, this region of the brain is concerned with vital functions like breathing, blood circulation, vomiting, and swallowing
The hollow, rounded cells which are found along the center of the main axis of a fiber They may run continuously along the length of the fiber