Sores appear 1-10 days after exposure to the bacteria. Microsoft Word â CD letter â impetigo 0308.doc Author: INGJ Created Date: EXPOSURE NOTICE Revised: May 19 checked below: ALWAYS CONSULT WITH A PHYSICIAN FOR TREATMENT. { } CHICKEN POX-onset about 2 to 3 weeks after exposure.
Microglia are the cells in the CNS that can do this in normal, healthy tissue, and they are therefore also referred to as CNS-resident macrophages. The ependymal cell is a glial cell that filters blood to make cerebrospinal fluid (CSF), the fluid that circulates through the CNS. Because of the privileged blood supply inherent in the BBB, the extracellular space in nervous tissue does not easily exchange components with the blood.
Ependymomas are tumors that grow in the ependyma, the cells that line passageways in the brain where protective brain and spinal cord fluid (cerebrospinal fluid) is created. Causes. The cause of ependymomas is not known, but they make up about six percent of brain tumors and about 60 percent of spinal cord tumors. While the average age of diagnosis is 22 years old, they also occur in children around age 5 and adults around age 34.