Answer:
in vitro fertilization
Explanation:
In vitro fertilization is an assisted reproduction technique widely used in infertility cases. It was popularly known as the "test tube baby" technique. This is a process in which eggs are fertilized by sperm outside the woman's body, in vitro, which in Latin means "in glass".
In vitro fertilization is as follows:
- The woman receives special reproductive hormones to favor the development of several eggs;
- Final egg maturation is induced by the administration of another hormone;
- After 36 hours, the fluid containing the eggs is removed from the ovaries with a needle. This procedure is usually done with the sedated woman and the doctor uses an ultrasound to guide the needle to the ovary;
- The collected eggs are then mixed with the man sperm, which has already been washed and concentrated;
- Eggs and sperm are left in an incubator at 37 ° C for 24 hours for fertilization to take place;
- During this time, only one of many sperm will penetrate and fertilize the egg;
- After fertilization, the cells will divide and multiply to form an embryo;
- After 2 or 3 days, a healthy embryo will have 8 cells. It is then transferred to the uterus through a thin, flexible tube where it is left to implant and generate a pregnancy;
- After 12 to 14 days, it is already possible to know the result through the beta-hCG pregnancy test.
Answer:
Throughout the healthcare sector, soiled linen is one of the principle vehicles for harmful bacteria. For those working in care homes and healthcare facilities, that means coming into contact with potentially dangerous items – such as bedsheets, towels and clothing – every day. Here are the most frequently asked questions about dealing with contaminated laundry, and how to limit the occupational risks involved through effective infection control in care homes. so no
Answer:
B
Explanation:
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Answer:
The immune response is how your body recognizes and defends itself against bacteria, viruses, and substances that appear foreign and harmful.
Information
The immune system protects the body from possibly harmful substances by recognizing and responding to antigens. Antigens are substances (usually proteins) on the surface of cells, viruses, fungi, or bacteria. Nonliving substances such as toxins, chemicals, drugs, and foreign particles (such as a splinter) can also be antigens. The immune system recognizes and destroys, or tries to destroy, substances that contain antigens.
Your body's cells have proteins that are antigens. These include a group of antigens called HLA antigens. Your immune system learns to see these antigens as normal and usually does not react against them.
