An Electron Microscope Study of the Rat Ovum
نویسندگان
چکیده
منابع مشابه
An Electron Microscope Study of the Rat Ovum
This paper reports on the fine structure of rat oocytes at stages before ovulation, during maturation, fertilization, and early cleavage. The study includes parallel observations on light and electron microscope preparations with attempted correlations. The follicular cells of the ovarian egg are described as sending long processes through the zona pellucida to the egg surface where they mingle...
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Explants prepared from 17- to 18-day fetal rat spinal cord were allowed to mature in culture; such preparations have been shown to differentiate and myelinate in vitro (61) and to be capable of complex bioelectric activity (14-16). At 23, 35, or 76 days, the cultures were fixed (without removal from the coverslip) in buffered OsO(4), embedded in Epon, sectioned, and stained for light and electr...
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Six weanling rats were fed a diet containing 0.4 per cent BAPN fumarate and sacrificed after 5 to 33 days on the diet. The ascending aortae were fixed with OsO(4), embedded in methacrylate and araldite, sectioned, stained with lead hydroxide, and examined with the electron microscope. The descending thoracic aortae were examined by light microscopy. Compared with pair-fed controls, the experime...
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ژورنال
عنوان ژورنال: The Journal of Biophysical and Biochemical Cytology
سال: 1959
ISSN: 1540-8140,0021-9525
DOI: 10.1083/jcb.5.2.327