The same semen sample is shown after staining with a peroxidase stain, which stains polymorphonuclear white blood cells. Embryo quality evaluations are based on the number of cells present in the embryo, the size and regularity of those cells and the degree of fragmentation observed. The sperm penetration assay SPA uses hamster eggs as a substitute to human eggs in order to measure the ability of a patient's sperm to undergo capacitation and penetration of an egg. Under appropriate environmental conditions and proper nutrition, the major breeding activity observed in R. Light photomicrograph of live rat sperm using differential interference contrast DIC microscopy. This study provides standard information on the attributes of sperm and describes the surface structure of normal and abnormal spermatozoa of R. Generate a file for use with external citation management software.
Gloria Joy Victor (1): Electron Microscope photos of human egg, sperm & embryo
SEM analysis is considered to be "non-destructive"; that is, x-rays generated by electron interactions do not lead to volume loss of the sample, so it is possible to analyze the same materials repeatedly. Most SEM's are comparatively easy to operate, with user-friendly "intuitive" interfaces. The fine structure of the sea urchin spermatozoa as revealed by the electron microscope. From Wikipedia, the free encyclopedia. Transmission Electron Micrograph TEM of the sperm centrosome; the microtubule structure of the tail is easily visible at this high magnification.
They look like little cinnamon candies here, but they're actually the most common type of blood cell in the human body - red blood cells RBCs. Swirling invaginations of the nuclear membrane are also visible. Fluorescent micrograph of a blastomere a single cell from a developing embryo stained to detect chromosome abnormalities. Coloured scanning electron micrograph SEM of cancellous spongy bone. Share Tweet Share E-mail Sperm is one of the vital components when planning to start a family.
Sperm attributes and morphology on Rusa timorensis: Discover more publications, questions and projects in Sperm. Scanning electron micrograph SEM of a round-headed sperm cell. Note the large vacuole containing abundant nuclear membrane swirling. This abnormal sperm has one X and 18 chromosomes, but two 13 and 21 chromosomes. Effects of immunization against gonadotropin releasing hormone on reproductive functions in male rusa deer Rusa timorensis. The hook shaped heads are all very similar, indicative of the low level of variability in morphology of rat sperm.