Structural changes in the granulosa lutein cells of pregnant cows between 60 and 245 days
Singh, U.B.
Acta Anatomica 93(3): 447-457
1975
ISSN/ISBN: 0001-5180 PMID: 1211095 Document Number: 92269
The polyhadral or plump cells had an acidophilic cytoplasm around the spherical nucleus. The glycogen granules increased in number up to 230 days of pregnancy. The lipid globules increased in size and amount during advanced pregnancy. The mitochondria showed wider range of variations in shape and size. The matrix of many mitochondria contained dense inclusions which replaced the entire matrix in late pregnancy. The endoplasmic reticulum was chiefly of the smooth type but a few stacks of the rough variety could be seen in the early days of pregnancy. Sometimes, whorls of smooth-surfaced endoplasmic reticulum enclosing mitochondria were seen. The Golgi complex was fully developed in the granulosa cells of all cases studied. The dense granules and lipid globules increased in size and number in the older corpora lutea. The cell surface showed numerous infoldings of the plasma membrane.