FunHow long does a sperm live outside the testicle

How long does a sperm live outside the testicle

In scientific language, we speak of “male gamete” to designate the sperm. Specifically, they are small cells – they measure 0.003 mm wide and 0.06 mm long – very mobile whose objective is to carry the male chromosomes into the oocyte (the “female gamete, which is also called the” ovum “). This is the principle of human reproduction. How long does a sperm live outside the testicle? A sperm is made up of 3 parts: the head where the nucleus (which contains the genetic information) and the acrosome (a kind of small bag that contains the genetic information) is located. enzymes that allow the penetration of the sperm into the oocyte), the intermediate part (it is the one that provides the energy necessary for movement) and the flagellum (which manages propulsion and direction). Sperm are produced in the seminiferous tubules, tubes very thin located in the testicles. Spermatogenesis is a fairly long process that takes place in several stages: it takes about 3 months for the stem cell to transform into sperm. Male gamete production begins at puberty and never stops. What Happens During Ejaculation During ejaculation, sperm pass through the vas deferens and then mix with secretions from the seminal vesicles and the prostate – this forms semen. All of this little mixture then reaches the urethra before being expelled out to the level of the glans. Ultimately, each ejaculation contains about 200 million sperm. Once expelled, the sperm land in the vaginal cul-de-sac just before entering the uterus. They must then travel 13 to 15 cm to reach the oocyte, at a speed of 2 cm per hour.A single sperm will fertilize the oocyte, causing the woman to become pregnant. But in some men, sperm are slower, and this can even cause fertility problems. So what is the lifespan of a sperm? If not ‘used’, sperm live for about 30 days in a man’s body, before they are finally replaced. During this time, they are stored in the testicles. But once expelled and when they are already inside the woman’s body, the sperm can “stop along the way” or even enter a “waking phase”: as a result, they retain their ability to fertilize for 2 to 5 days after being expelled, but in practice, the oocyte has a lifespan of 12 to 24 hours. Therefore, if a pregnancy is desired, the ideal is that the sperm are already in the tubes at the time of ovulation, what if it is not in the woman’s body? In water (swimming pool, shower, bath, sea water…), sperm die almost instantly since they are made to live in an alkaline environment. If we immerse them in an acidic environment (chlorinated water, for example), they have no chance of surviving, while if they are expelled without further ado, they barely survive for half an hour.

Slaves and Disabled: Forced Medical Test Volunteers

The main problem to carry out medical research is to have willing volunteers for it. And if they come out for free, much better. This is the story of unethical behavior in medical research.

How are lightning created?

Summer is synonymous with sun, but also with storms. Who has not contemplated one from the protection that the home gives that electrical display that is lightning?

How global warming will affect astronomy

Astronomical observations around the world will worsen in quality as a result of climate change, according to a new study.

New images of Saturn's rings in stunning detail

New images of Saturn's rings in stunning detail

NASA discovers more than 50 areas that emit exorbitant levels of greenhouse gases

NASA's 'EMIT' spectrometer locates has targeted Central Asia, the Middle East and the US among others.

More