Microglia are: 1. wandering white blood cells, function is immune defense.

2. forming myelin sheaths to insulate axons.

3. forming the blood brain barrier.

4. producing CSF

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Which part of the neuron below is indicated by the arrow, and what is its function? hormones send chemical signals throughout the body to regulate other body processes. hormones are chemical signals that are sent throughout the body to regulate other body processes. hormones send electrical signals throughout the body to regulate other body processes. hormones are electrical signals that are sent throughout the body to regulate other body processes.