Educational Requirements for Registered Nurses. Nursing students may choose from a variety of education options to become a registered nurse. Some teaching hospitals offer 3-year diploma programs in nursing; however, these programs are rare. Most RNs earn associate degrees or bachelor's degrees in nursing.
This is covered by a membrane of connective tissue called the periosteum. Beneath the cortical bone layer is a layer of spongy cancellous bone. Inside this is the medullary cavity which has an inner core of bone marrow made up of yellow marrow in the adult and red marrow in the child.
the cavity, containing marrow, in the diaphysis of a long bone; called also medullary canal. nasal cavity. the proximal part of the respiratory tract, within the nose, bisected by the nasal septum and extending from the nares to the pharynx.. a hollow or space, or a potential space, within the body or one of its organs; called also caverna and cavum. 2. the lesion produced by dental caries. Cavities in the body. From Applegate, 2000. abdominal cavity the cavity of the body between the diaphragm above and the pelvis below, containing the abdominal organs.