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.
Ependymal cells are found in the Central Nervous System (CNS), that is in the tissues of the Brain and Spinal Cord. : : 1  Protection: Forms lining of the ventricles of the brain and central canal of the spinal cord.icroglial cells are sometimes known simply as microglia and are found in the Central Nervous System (CNS), that is in the tissues of the Brain and Spinal Cord. : Microglia are small glial cells. : 1  Protects CNS neurons from disease 2  -. e.g. by clearing away debris and dead cells.