Amanda hale, British actress

North Carolina [US], April 24 : According to a recent study, the human digestive system's structure varies significantly from person to person, with obvious variances amongst healthy people. The discovery could help explain how the structure of the digestive tract affects human health and could also shed light on how the gut's microbial ecosystem and medical diagnoses are made.The findings of the study published in the journal PeerJ."There was research more than a century ago that found variability in the relative lengths of human intestines, but this area has largely been ignored since then," says Amanda Hale, co-first author of the study and a Ph.D. candidate at North Carolina State University. "When we began exploring this issue, we were astonished at the extent of the variability we found.""If you're talking to four different people, odds are good that all of them have different guts, in terms of the relative sizes of the organs that make up that system," says Erin McKenney, corresponding author of the study and an assistant professor of applied ecology at NC State. "For example, the cecum is an organ that's found at the nexus of the large and small intestine. One person may have a cecum that is only a few centimeters long, while another may have a cecum the size of a coin purse. And we found similar variability for many digestive organs."In another striking example, the researchers found that women tend to have longer small intestines than men."Because having a longer small intestine helps you extract nutrients from your diet, this finding supports the canalization hypothesis, which posits that women are better able to survive during periods of stress," says Hale."Given that there is more variation in human gut anatomy than we thought, this could inform our understanding of what is driving a range of health-related issues and how we treat them," says McKenney. "Basically, now that we know this variability exists, it raises a number of research questions that need to be explored."For this study, the researchers measured the digestive organs of 45 people who donated their remains to the Anatomical Gifts Program at the Duke University School of Medicine.In addition to shedding light on the unexpected variability in human anatomy, this project also led to rediscovering the importance of teaching anatomical variation to medical students."It's particularly important in medical training, because if students are only learning about a 'normal' or 'average' anatomy, that means they are not going to be familiar with the scope of human variation," says Roxanne Larsen, co-author of the paper and an associate professor of veterinary and biomedical sciences at the University of Minnesota. "It's increasingly clear that the medical field is moving toward individualized medicine to improve patient outcomes and overall health and well-being. Garnering experience in understanding anatomical variation can play a critical role in helping future doctors understand the importance of individualized medicine.""We're excited about this discovery and future directions for the work," McKenney says. "It underscores just how little we know about our own bodies."Disclaimer: This post has been auto-published from an agency feed without any modifications to the text and has not been reviewed by an editor

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Health :Researchers discover significant variation in anatomy of human digestive system

North Carolina [US], April 24 : According to a recent study, the human digestive system's structure varies significantly from ... ...