CENTRAL NERVOUS SYSTEM
SPINAL CORD – 4
The gray matter contains neuron cell bodies (highlighted in green), dendrites and axons.
The white matter is almost entirely occupied by myelinated and non myelinated axons. Most are placed lenghwise along the cord and, therefore, seen cross-sectioned in transversely sectioned cords.
The myelinated axons are seen enclosed by "round empty spaces". This happens because the myelin layer that surrounded each axon was dissolved during the preparation of the sections. For this reason the axons (highlighted in dark blue) are seen inside spaces where myelin was present, highlighted in light blue.
SPINAL CORD – 4
Interface between the spinal cord gray and white matters.
The gray matter contains neuron cell bodies (highlighted in green), dendrites and axons.
The white matter is almost entirely occupied by myelinated and non myelinated axons. Most are placed lenghwise along the cord and, therefore, seen cross-sectioned in transversely sectioned cords.
The myelinated axons are seen enclosed by "round empty spaces". This happens because the myelin layer that surrounded each axon was dissolved during the preparation of the sections. For this reason the axons (highlighted in dark blue) are seen inside spaces where myelin was present, highlighted in light blue.
