What do you know about sperm? The following things may help you understand more interesting things about sperm, about existence and how they perform in the role of maintaining the human race.
1. How many sperm cells are released when a man ejaculates? Sperm counts vary from about 20 million to 100 million sperm per milliliter upon ejaculation. A healthy man will produce between 1.5ml and 5ml of semen per ejaculation.
A man can ejaculate 20 million to 100 million sperms in each ejaculation. (Photo: turbosquid.com)
2. The size of this sperm cell is about 50µm (0.05mm) long. The smallest cells you can see with your eyes are only about 0.1mm. So to see the sperm requires a microscope.
3. Sperm are made up of small cells called homunculi or animalcules . Each sperm cell consists of three basic parts: the head (which contains the genetic DNA), the middle part (which powers the tail), and its own tail (also known as the flagellum).
4. How fast does sperm swim? Sperm cells swim about 5mm a second, or about 0.2 inches. This speed, although it sounds slow, is actually not small compared to the size of the sperm. If a whale had the ability to move as fast as sperm, that whale could swim at 15,000 miles per hour.
Sperm cells swim about 5mm a second
5. How does the sperm know the way? Scientists believe that sperm cells reach eggs by two complex mechanisms, including their ability to swim towards higher concentrations of molecules produced by the egg (also known as chemotaxis) and the ability to target high-temperature areas in a woman’s reproductive tract to reach the uterus (also known as the thermotaxis mechanism).
6. The person who discovered sperm cells was Antonie van Leeuwenhoek (1632-1723). This Dutch amateur scientist observed sperm cells in 1677. Van Leeuwenhoek was also the first to observe bacteria, muscle fibers, and the flow of blood cells through capillaries. . He is called the “father of microbiology”.
7. How long can sperm cells survive? That depends on the environment they exist in. If inside a woman’s reproductive organs, sperm can survive for up to five days. In the external environment, sperm can only live for a few hours at most.
8. With the sperm cells not ejaculating, they are returned to the man’s body.
Sperm shaped like tadpoles
9. Does sperm count decrease over time? That is difficult to determine. Previously, a report that studied the increase and decrease of sperm count spanning from 1938 to 1990 showed that sperm results decreased from starting at 113 million/ml to 66 million/ml. But recent researchers have suggested that sperm counts are stable.
10 . Sperm look like tadpoles. However, more than 90% of sperm are produced with more or less deformities such as two heads, two tails, deformed heads or coiled tails. These differences affect the ability to move and access eggs.
However, that does not mean the man is infertile. Normal spermatozoa have oval heads and long tails. In the race to the egg, millions of sperm have failed, only a few healthy sperm can reach. And this is how natural selection works.
Sperm take 46-72 days to mature in the testes and be ready for fertilization
11. Although men continuously produce sperm and can release thousands of sperm in 1 second, sperm takes several months to mature. On average, they need 46-72 days to mature in the testicles and be ready for fertilization.
But gentlemen need not worry, even when ejaculating, a new “batch” of sperm is already prepared for the next act.
12. One testicle can provide a sufficient number of sperm. Some people have only one of the testicles working.
However, that alone was enough for him to produce a large army of sperm in preparation for conception. This means that having an active testicle does not affect the ability to have children.
13. Although your body may heat up under a warm blanket, sperm will remain cool. Testicles always maintain a temperature about 7 degrees lower than body temperature to ensure a healthy sperm team.
14. Is external ejaculation an effective method of contraception? External ejaculation is performed when a man withdraws his penis from a woman’s vagina before ejaculating. In fact, contrary to many people’s beliefs, this method is really not very effective in preventing pregnancy. Before ejaculation, a small amount of semen exits the penis. It is completely possible for a woman to become pregnant if this fluid comes into contact with the vagina.
Pregnancy during sex in a hot tub is rare and almost impossible.
15. How long can sperm live in a hot tub? In a hot tub, sperm cannot live long and will die within seconds. Therefore, pregnancy during sex in a hot tub is very rare and almost impossible.
16. How long can sperm live when frozen? Scientists believe that sperm can live a long time if they are refrigerated at low temperatures, as long as the temperature is maintained at a constant level. At a low temperature of about -196°C, sperm will turn into an inactive form, which means all their functional activities are stopped.
17. How is sperm made? Normally, millions of sperm are produced every day in the testicles. During this time, the cells that make sperm are constantly dividing and changing.