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Child didn't notice 2 injections.
🫣 Unpacking the human nervous system
Despite the fact that there is almost two metres of distance between the brain and the tips of your toes, signals from it reach your feet in 1/100th of a second. Which, for humans, is effectively instantaneous.
Scientists have invented a gel that helps you drink alcohol without harming your body.
The gel turns alcohol into harmless acetic acid before it enters the bloodstream, and the liver is left intact.
The sucking reflex in all its glory.
The reflex is unconditional and is absent in facial nerve paresis, profound mental retardation, and severe somatic conditions. The sucking reflex in human children usually dies out between three and four years of life, which explains why in many cultures breastfeeding lasts until the age of three or four years, i.e. until the age to which the child himself sucks the breast.
An unusual way to remove a foreign body in the upper respiratory tract.
This is what IVF with ICSI (Intracytoplasmic Sperm Injection) looks like, a technique used in cases of infertility.
During IVF, the egg is extracted from the woman's body and fertilised artificially "in vitro", the resulting embryo is kept in an incubator where it develops for 2-5 days, after which the embryo is transferred into the uterine cavity for further development.
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This is an example of the use of a cofferdam.
It is a latex dental plate designed to isolate one or more treated teeth from the rest of the mouth during treatment.
Doctors who perform a caesarean section allow the baby to come into the world on its own, making the operation as close to a natural birth as possible.
By applying pressure to the abdomen, the surgeon mimics the mother's pushing.