The anatomy of humans is evolving at a rapid pace in evolutionary terms. In 1880, only about ten percent of adults had a median artery, but by 2100, almost one hundred percent could have it. This is according to a study by scientists at Flinders University, who have found that the anatomy of humans is subject to evolutionary changes. The study, published in the Journal of Anatomy, shows that the median artery, which is normally an embryonic structure that disappears in the eighth week of pregnancy, is now present in a growing number of adults.
The scientists examined 78 people who died between 2015 and 2016, aged between 51 and 101, to determine whether the number of adults with a median artery had increased. They found that 33 percent of the bodies had a third arm artery, which is a significant increase from the ten percent recorded in 1880. The researchers believe that mutations in the genes that control the development of the median artery, as well as health problems during pregnancy, could be responsible for this change. The presence of the median artery allows for better blood flow in the arm, but it also increases the risk of carpal tunnel syndrome.
According to the lead researcher, Teghan Lucas, the study shows that humans are still evolving. She believes that by 2100, almost all humans could have a median artery in their forearm if the trend continues. This rapid development of the anatomy is evidence of the constant adaptation of humans to their environment. The study also highlights the importance of monitoring changes in the human anatomy, as they can have significant implications for health and wellbeing.
