Abstract
Numerous 95 ± 5 Å filaments have been observed in a chromophobe within the anterior pituitary gland of the guinea-pig. The cytoplasm of the chromophobe is somewhat electron lucid and long processes of the cell extend between granulated parenchymal cells. A basement membrane borders the plasma membrane of chromophobes facing the pericapillary space. Adjacent chromophobes are connected by maculae adherentes (desmosomes) and zonula adherens and often form a lumen; microvilli project into the lumen from the chromophobes.
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