more and more human beings are born with an extra artery in the arm

  • 37

What will the human being be like in 1,000 years? What about 100,000? It’s hard to know, but we may be a little different than we are now: evolution is slow, but inexorable.

That is of course what a new study by several researchers points out that reveals something curious: more and more human beings have an extra artery in the arm.

Having a median artery can have advantages, but also disadvantages

It is called the satellite artery of the median nerve (or “median artery”) and is an occasional anatomical variant that usually forms during the first few weeks of life of the fetus.

This artery appears in the center of the arm and is responsible for bringing blood to the hands as they grow, but normally it tends to regress at eight weeks.

Everything Transhumanism in Fiction Taught Us That Could Go Wrong

It is then that the normal thing is that stop developing and the other two arteries (ulnar and radial, the latter being the one we use, for example, to detect the pulse) are the ones in charge of that function.

Now a group of researchers has discovered something curious: that extra artery that usually disappears soon appearing more and more frequently in humans.

Anatomy expert Teghan Lucas explained how “the prevalence was around 10% in people born in the mid-1880s, who compares with 30% in those born at the end of the 20th centuryAnd that’s a significant increase in a really short period of time if we’re talking about evolution.”

After analyzing 80 limbs from cadavers donated by descendants of people in Australia and Europe, these anatomists discovered that the presence of the artery was becoming more frequent. “This increase could be the result of mutation of genes involved in the development of the median artery or by health problems in mothers during pregnancy.

The parts of the human body that have no practical meaning: the fascinating world of the vestiges of evolution

Having that extra artery could lead to dexterity of fingers or stronger forearmsbut it is also true that the presence of this artery in adults poses a greater risk of carpal tunnel syndrome.

According to these researchers, “if this trend continues, most people will have the median artery of the forearm by the year 2100“. It is not a huge evolutionary difference, but it certainly shows that human beings continue to evolve. And if we do not do it alone, transhumanism will try to make us do it with external elements such as that curious third thumb that someone came up with in 2019.

Image | Engin Akyurt

Via | ScienceAlert

What will the human being be like in 1,000 years? What about 100,000? It’s hard to know, but we may…

What will the human being be like in 1,000 years? What about 100,000? It’s hard to know, but we may…

Leave a Reply

Your email address will not be published.