Abstract
The ultrastructure of granulosa lutein cells of pregnancy from 10 raccoons (Procyon lotor), 8 crabeater seals (Lobodon carcinophagus), 3 black bears (Ursus americanus), a palm civet (Paradoxurus hermaphroditus) and a dog (Canis familiaris) was studied. Fetuses ranged from 10-130 mm crown rump length (CR) in raccoons, 15-180 mm CR in seals, 150-190 mm CR in bears, H O mm CR in civet and near term in dog. The cells possess abundant smooth endoplasmic reticulum (ER), variable amounts of mitochondria with tubular and lamellar cristae, a small amount of lipid droplets and folded plasma membranes (Figs. 1-5) much as in other steroid-secreting tissues. However, variations in the arrangements of smooth ER, mitochondria, lipid droplets and plasma membranes are observed throughout pregnancy. For example, in the civet plasma membranes have a few folds but they are highly specialized and complexly folded in the seals and raccoons especially near the capillaries (Fig. 3).
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Proceedings, annual meeting, Electron Microscopy Society of America
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
