ISSN:
0003-276X
Keywords:
Life and Medical Sciences
;
Cell & Developmental Biology
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Medicine
Notes:
Adrenal glands of the domestic duck (Anas platyrhynchos) were fixed in formaldehyde-glutaraldehyde for light and electron microscopical examination. Each gland is encapsulated by a layer of connective tissue and consists of two major secretory cell types, the interrenal cells and the medullary cells. In section, the medullary cells appear as islands of tissue dispersed throughout the gland. The interrenal cells are characterized by numerous lipid droplets and abundant mitochondria having mainly tubular cristae. They have an extensive Golgi apparatus, moderate amounts of smooth endoplasmic reticulum and a lesser amount of rough endoplasmic reticulum. Lipid droplets and mitochondria in interrenal cells were seen frequently in association with the endoplasmic reticulum. Adjacent interrenal cells had numerous regions of pentalaminar fusion and intermediate junctions.Medullary cells were characterized by a large population of electron opaque neurosecretory granules. These cells contained fewer mitochondria and cisternae of endoplasmic reticulum than the interrenal cells. In many cases the medullary cells and interrenal cells were closely juxtaposed and were separated by a thin band of extracellular matrix.
Additional Material:
1 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/ar.1091800212
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