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Sperm banks cryogenics

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A sheriff's deputy in Augusta, Georgia, recently died after inhaling liquid nitrogen while trying to save an employee inside a sperm bank. Greg Meagher, 57, died Feb. Two liquid nitrogen tanks, which are used to preserve sperm samples, were somehow opened in the sperm bank. The injured deputies were treated for shortness of breath and released, according to news reports. But why is inhaling liquid nitrogen so deadly, given that nearly 80 percent of the air people breathe is made up of nitrogen? It turns out that the liquid nitrogen's danger lies in its rapid transformation into a gas, which can cause asphyxiation, said Peter Barham, a physicist at the H H Wills Physics Laboratory in Bristol, England, and author of "The Science of Cooking" Springer,
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Fertility Treatment Was Too Expensive So I Had Sex With a Friend Instead

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California Cryobank Sperm Donor Compensation

Objective: To determine whether semen quality has changed in the United States over the last 25 years. Design: Retrospective review. Setting: Three U. Los Angeles, California. Intervention: None.
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Semen analyses in 1,283 men from the United States over a 25-year period: no decline in quality

Couples whose infertility is due to a significant sperm abnormality in the male sometimes choose to undergo insemination using sperm from an anonymous sperm donor. In AID, the donor's sperm is inseminated into the woman's uterus at the time of ovulation, enabling the woman to conceive. These circumstances stem from a number of causes such as the absence of sperm production, previous vasectomy, or residual effects from chemotherapy or radiation therapy.
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Question: I am an educator for a human sexuality class. A student asked me an interesting question that I was unsure how to answer. Given that we know sperm can survive about 72 hours in a woman's body, how is it possible to keep sperm viable by freezing them? Answer: Sperm can survive for a long time under the right circumstances. In a woman's body we think that 72 hours is approximately correct, but the data supporting this estimate is not conclusive.
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All сomments (2)

  1. Arashishakar
    Arashishakar 1 year ago

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  2. Bolaji
    Bolaji 1 year ago

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