The image is of a section of the brain.
A large multipolar neuron stands out in the center of the image. Its cell body, also called the perikaryon, is highlighted in green, as are several of the extensions that emerge from the perikaryon.
There are portions of two other neurons in the image, also highlighted in green.
The nucleus of the large neuron is located in the center of the perikaryon, is large and spherical – highlighted in light blue. The chromatin is loose, and large nucleoli are frequently observed inside the neuronal nuclei, highlighted in dark blue.
In addition to the neurons described above, a large number of nuclei are observed, smaller than those of neurons, and which are probably neuroglial cells, which will be studied later. These nuclei are highlighted in dark blue.
Most of the image is composed of a pink “substance” which, if you look closely, is formed of small filaments. This is a large number of neuronal and neuroglial cell extensions. Routine staining does not allow us to distinguish the extensions, nor to know to which cells they belong.
Nervous tissue requires a lot of energy and oxygen to function and for this reason it is highly vascularized. The mass of pink tissue has a large number of small cavities that are blood capillaries – highlighted in red.
