【正文】
Neuron : ? Supporting cells : – CNS : neuroglia (glia) – PNS : Schwann cells and satellite cells – Functions : ? physical support ? electrical insulation ? metabolic exchange ? bloodbrain barrier Composition of Nervous Tissue Types and Functions of Glia Name of Glial Cell Function Astrocyte (Astroglia) Starshaped cells that provide physical and nutritional support for neurons: 1) clean up braindebris。 2) transport nutrients to neurons。 4) digest parts of dead neurons。 endothelial barrier antigen (EBA。 transferrin receptor (transport of ferric ions). Properties of Blood Brain Barriers BBB 1. Neurons have TWO processes called axons and dendrites. Glial cells only have ONE. 2. Neuron