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If sperm can't survive outside the body, how do they preserve sperm in a sperm bank?

If sperm can't survive outside the body, how do they preserve sperm in a sperm bank? - Biology Forum

If sperm can't survive outside the body, how do they preserve sperm in a sperm bank? - Biology Forums. Ask questions and discuss the study of Biology. If you have Biology questions from your homework ask them here!


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Old 06-23-2009, 04:17 PM
Pipette Filler
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Default If sperm can't survive outside the body, how do they preserve sperm in a sperm bank?



I was told that sperm can only survive for a few seconds (or a couple of hours) outside the body. My sister used the same bath as me and it had some sperm in it, so we were worried that she could have gotten pregnant, but I've been told that sperm can't survive outside of the body, so she's not pregnant but it leaves me wondering how it's normally preserved.
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Old 06-23-2009, 04:18 PM
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Sperm freezing, also known as cryopreservation, has been practiced for many decades. Cryopreserved sperm is frozen in liquid nitrogen at a temperature of -196 °C. The frozen sperm cells are held in a state of suspended animation and all cellular activity is essentially halted until thawing. After thawing, a percent of the sperm revive and return to the pre-freeze state
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Old 06-23-2009, 05:17 PM
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