Answer:
Sperm washing is the process in which individual sperms are separated from the semen. Washed sperm is used in artificial insemination using the intrauterine insemination (IUI) technique and in in vitro fertilization (IVF). It may also be used to decrease the risk of HIV transmission by an HIV-positive male, in which case the washed sperm is injected into a female using an artificial insemination technique.
Sperm washing involves removing any mucus and non-motile sperm in the semen to improve the chances of fertilization and to extract certain disease-carrying material in the semen. Sperm washing is a standard procedure in infertility treatment.
Explanation:
Sperm washing takes place in a laboratory following sperm donation.
Sperm may be washed by density gradient centrifugation or by a "direct swim-up" technique that does not involve centrifugation. In normal semen samples, centrifugation causes no more DNA damage to spermatozoa than a direct swim-up technique.[1]
Washed sperm is concentrated in Hams F10 media without L-glutamine, warmed to 37 °C (99 °F).[2] A chemical known as a cryoprotectant is added to the sperm to aid the freezing and thawing process.[3] Further chemicals may be added which separate the most active sperm in the sample, as well as extend or dilute the sample so that vials for a number of inseminations are produced.
To prevent<span> the </span>risk<span> of </span>injury<span> from </span>slips<span>, </span>trips<span>, or </span>falls due<span> to </span>clutter<span>, </span>you should<span> organize </span>storage areas<span> and secure </span>cords<span> and </span><span>cables</span>
Explanation:
Poor health can put a person's physical condition a risk because a person cannot do any physical movement or exercise because of poor health. For example, if someone is having high blood pressure, he cannot do much workout. Poor physical movement can be the factor why the person is having problems with mental conditions because he will feel bad about himself which will lead him to bad social aspects since the person who is thinking bad about themselves are more likely to think that other people think that too.
Answer: The most likely cause of death in 1900 would be pneumonia/influenza, while the leading cause of death in 2006 was heart disease.