Author: Paul Kwan, Ph.D.
| Description: | This section contains the pars distalis, the pars intermedia, reamins
of Rathke's pouch, and the pars nervosa. The pars distalis contains a
variety of cells that vary in their staining property. There are
acidophils, basophils and chromophobes. However, in a low powered
micrograph of a H&E stained section like this one, the differences
between the acidophils and basophils may not be that obvious. The
bright orange material is blood. The par intermedia usually contains
less diversed cells types with melanotropes most abundant, but there is
quite a bit of species variations. The pars nervosa is made up of
supportive cells (pituicytes) and unmyelinated nerve fibers (from the
hypothalamus). Herring bodies, accumulated neurosecretory material,
cannot be seen at this magnification. Original mag. 50x H&E
Pituitary. Endocrine System. Dog. |
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