The poll glands of the dromedary (Camelus dromedarius): ultrastructural characteristics.
The poll glands of the camel are tubuloalveolar glands. They consist of lobules separated by interlobular connective tissue. Adrenergic axons and blood vessels including fenestrated capillaries are present in the intralobular connective tissue in close proximity to the secretory cells. The prominent features of the secretory cell cytoplasm are many mitochondria, smooth endoplasmic reticulum, and many vesicles in various secretory stages. It is concluded that the secretory cells have apocrine as well as merocrine modes of secretion. The glands may have the ability to uptake hormones and concentrate them. Additional work is needed before considering these glands as steroid-secreting glands.
Taha
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AA
Department of Veterinary Medicine, Faculty of Agriculture and Veterinary Medicine, Buraydah, Kingdom of Saudi Arabia.
Abdel-Magied
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EM
Abdalla
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MA
Abdalla
A B
AB
D000818:Animals; D002162:Camelus / Q000033:anatomy & histology*; D003238:Connective Tissue / Q000648:ultrastructure; D004702:Endocrine Glands / Q000378:metabolism / Q000648:ultrastructure*; D008297:Male; D008854:Microscopy, Electron