Neurons

Neurons grow rapidly before & after birth

Neurons

Neurons grow rapidly before & after birth

Up to

50,000 per second

Neurons

Most are irreplaceableNeurons

Most are irreplaceableNeurons

Some last a lifetime

Winnowing =Neurons

throwing out what you don’t need

Can’t do it by themselvesNeurons

Can’t do it by themselvesNeurons

Need glial cells

Glia

Need glial cells

Glia

Six Types Major Types

Glia Radial glial cells

Six Types Major Types

Glia Radial glial cells

Build a tree-like structure that neurons climb to form the brain.

Six Types Major Types

Glia Oligodendrocytes

Six Types Major Types

Glia Oligodendrocytes

Myelinate (insulate) cells in brain and spine.

Six Types Major Types

Glia Schwann cells

Six Types Major Types

Glia Schwann cells

Myelinate (insulate) cells in peripheral system.

Six Types Major Types

Glia Astrocytes

Six Types Major Types

Glia Astrocytes

Hold CNS (central nervous system) neurons in place.

Six Types Major Types

Glia Satellite cells

Six Types Major Types

Glia Satellite cells

Hold PNS (peripheral nervous system) neurons in place.

Six Types Major Types

Glia Microglia

Six Types Major Types

Glia Microglia

Help clean up brain, since it doesn’t have an immune system.

Six Types Major Types

Microglia

Astrocytes

Satellite

Oligodendrocytes

Myelinating Schwann cells

Radial

Glial Cells

biologicalpsych.com