For Each Historical Identification Question, Define the Term and Briefly

question 24

Short Answer

For each historical identification question, define the term and briefly describe its historical significance.
-Jesus

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Definitions:

Myelin Sheaths

Insulating layers around nerves made of lipid and protein, enhancing the speed of electrical signal transmission.

Astrocytes

Star-shaped glial cells in the brain and spinal cord involved in physical support, maintenance of the blood-brain barrier, and nutrient and ion regulation.

Microglia

Specialized type of glial cells in the brain and spinal cord that act as the main form of active immune defense in the central nervous system.

Ependymal Cells

Specialized glial cells that line the ventricles of the brain and the central canal of the spinal cord, involved in the production of cerebrospinal fluid.