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.
depends tbh it could either be good or bad depending on how you use it
Answer:
C- having children keep a daily calendar to track teeth-brushing at school.
Explanation:
all the other answer choices are not something you would usually do in a preschool class. A wouldn't be it because teacheres are not permitted to physically touching students. B also wouldn't be it because that is something one of the older grades would do, not 4 and 5 years old kids. Finally, D would'nt be the answer cause they wont learn much from a model. C would be the correct answer choice because it can help teach the kids their days of the week, which is whats taught in most preschools.
Answer:
true
Explanation:
one of many ways of transmission
Primary intention- wound healing with skin edges that are approximated, risk of infection is low, healing occurs quickly with minimal scar formation as long as infection and secondary breakdown is prevented (similar to a surgical wound)
Most common = Acute wounds; minimal tissue loss = surgical wounds and superficial partial thickness (abrasions/blisters)
Secondary Intention This type of healing is in wounds with extensive tissue loss/infection & wounds in which the edges cannot be approximated (closed). Would is left open and granulation tissue gradually fills in the deficit. Susceptible to infection. Wet to dry dressings. Ex: Pressure Ulcer Associated w/ pathology = diabetes, ischemia, pressure damage in inflammation (Neuropathic, arterial, venous, full thickness, chronic inflammation) Require ongoing wound care - larger scares
