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The higher the sperm concentration, the more likely that multiple sperm may fertilize the egg. The embryo must then continue to grow and develop the different types of cells and structures necessary to become a baby. How to book an appointment Attend an open evening Order a brochure. The bovine uterotubal junction is sigmoidal in shape and supported by muscular ligaments that appear capable of increasing the flexure of the curve and thus compressing the lumen Hook and Hafez, ; Hafez and Black, The abortion pill is very effective.

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When bull sperm were capacitated before being added to explants of oviductal epithelium, subsequent sperm binding was significantly reduced Lefebvre and Suarez,

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Fertility basics

Want supercharged sperm, or just a nudge to the slow guys? In addition to providing a haven, the storage reservoir maintains the fertility of sperm until ovulation. The narrowness of the lumen is especially apparent in living tissue Suarez, and in frozen sections, in which tissue does not shrink as it does during standard preparation of paraffin-embedded sections Suarez et al. On the other hand, scanning electron microscopy of the human cervix indicates that mucosal grooves forming a preferential pathway for sperm could be present as in the bovine Figure 2. Vaginal washings of women with high levels of detectable seminal antigens had a median pH of 6. Close mobile search navigation Article navigation.

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