Digital Histology
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Oligodendrocytes

This section of developing rat spinal cord shows a multipolar, motor neuron surrounded by oligodendrocytes and astrocytes.  The oligodendrocyte nuclei are smaller and more heterochromatic than are astrocyte nuclei.  1000x

Oligodendrocytes > <p>Because this is a section of developing rat spinal cord, some of the oligodendrocytes are still immature (red arrows).  In these cells, the nuclei are larger and more euchromatic and the cytoplasm is more extensive than that in the more mature oligodendrocytes (yellow arrows).  Also visible are the pale-staining nuclei of astrocytes.</p>

Oligodendrocytes >

Because this is a section of developing rat spinal cord, some of the oligodendrocytes are still immature (red arrows).  In these cells, the nuclei are larger and more euchromatic and the cytoplasm is more extensive than that in the more mature oligodendrocytes (yellow arrows).  Also visible are the pale-staining nuclei of astrocytes.
Astrocytes <p>Because this is a section of developing rat spinal cord, some of the oligodendrocytes are still immature (red arrows).  In these cells, the nuclei are larger and more euchromatic and the cytoplasm is more extensive than that in the more mature oligodendrocytes (yellow arrows).  Also visible are the pale-staining nuclei of astrocytes.</p>

Astrocytes

Because this is a section of developing rat spinal cord, some of the oligodendrocytes are still immature (red arrows).  In these cells, the nuclei are larger and more euchromatic and the cytoplasm is more extensive than that in the more mature oligodendrocytes (yellow arrows).  Also visible are the pale-staining nuclei of astrocytes.
Myelinated axons <p>Because this is a section of developing rat spinal cord, some of the oligodendrocytes are still immature (red arrows).  In these cells, the nuclei are larger and more euchromatic and the cytoplasm is more extensive than that in the more mature oligodendrocytes (yellow arrows).  Also visible are the pale-staining nuclei of astrocytes.</p>

Myelinated axons

Because this is a section of developing rat spinal cord, some of the oligodendrocytes are still immature (red arrows).  In these cells, the nuclei are larger and more euchromatic and the cytoplasm is more extensive than that in the more mature oligodendrocytes (yellow arrows).  Also visible are the pale-staining nuclei of astrocytes.
Multipolar neuron <p>Because this is a section of developing rat spinal cord, some of the oligodendrocytes are still immature (red arrows).  In these cells, the nuclei are larger and more euchromatic and the cytoplasm is more extensive than that in the more mature oligodendrocytes (yellow arrows).  Also visible are the pale-staining nuclei of astrocytes.</p>

Multipolar neuron

Because this is a section of developing rat spinal cord, some of the oligodendrocytes are still immature (red arrows).  In these cells, the nuclei are larger and more euchromatic and the cytoplasm is more extensive than that in the more mature oligodendrocytes (yellow arrows).  Also visible are the pale-staining nuclei of astrocytes.
- Dendrites <p>Because this is a section of developing rat spinal cord, some of the oligodendrocytes are still immature (red arrows).  In these cells, the nuclei are larger and more euchromatic and the cytoplasm is more extensive than that in the more mature oligodendrocytes (yellow arrows).  Also visible are the pale-staining nuclei of astrocytes.</p>

- Dendrites

Because this is a section of developing rat spinal cord, some of the oligodendrocytes are still immature (red arrows).  In these cells, the nuclei are larger and more euchromatic and the cytoplasm is more extensive than that in the more mature oligodendrocytes (yellow arrows).  Also visible are the pale-staining nuclei of astrocytes.
- Nissl bodies <p>Because this is a section of developing rat spinal cord, some of the oligodendrocytes are still immature (red arrows).  In these cells, the nuclei are larger and more euchromatic and the cytoplasm is more extensive than that in the more mature oligodendrocytes (yellow arrows).  Also visible are the pale-staining nuclei of astrocytes.</p>

- Nissl bodies

Because this is a section of developing rat spinal cord, some of the oligodendrocytes are still immature (red arrows).  In these cells, the nuclei are larger and more euchromatic and the cytoplasm is more extensive than that in the more mature oligodendrocytes (yellow arrows).  Also visible are the pale-staining nuclei of astrocytes.
Main SlideOligodendrocytes >AstrocytesMyelinated axonsMultipolar neuron - Dendrites - Nissl bodies