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Does the Amazon rainforest really produce 20 percent of the world's oxygen?



While your eyelashes protect your eyes, your lungs allow you to breathe and virtually every other part of your body – inside and out – performs its own, relatively well-known task. Her navel just sits there and collects lint. And while it's true that your navel has fulfilled its most important purpose before you were born, it is not completely useless now.

According to ZME Science, your navel in your time as a fetus was more of a belly portal: your umbilical cord The cord pulled out and connected you to the placenta on your mother's uterine wall. In this way, the placenta can deliver nutrients and oxygen through the cord to you and you can send waste back.

Your umbilical cord was severed at birth, creating a small bulge that left scar tissue after healing. This scar tissue is your belly button, navel or navel. You may have heard that the shape of your navel is directly related to the scissor capabilities of the doctor who gave birth to you. This is not the case. Dr. Dan Polk, a neonatologist from the Chicago area, told the Chicago Tribune that the shape of a navel "has to do with how much baby skin leads from the baby's body to the umbilical cord. Less skin makes an innie; More skin is an outie. "About 90 percent of people have innies."

Regardless of what your navel looks like, you probably do not use it daily, but if you've studied anatomy, medicine, or a related subject, you may recognize it as the focal point Another way to classify this area is to subdivide it into nine areas, including the hypochondriacal, lumbar, and iliac ones

Your navel may also serve as an opening for laparoscopic surgery, which may prevent you from having a scar on your stomach elsewhere.

The navel is also outside the medicine a great central landmark If you have attended yoga or Pilates classes, you may have heard this as Center of gravity or center of gravity is designated. With your navel sitting directly on your abdominal muscles, your instructor can easily tell you when to get access to your core, which will help you balance.

And, of course, belly tabs are notorious for storing some fluff that always seems to be blue (read more here).

Do you have a big question to answer? If so, write us an email at bigquestions@mentalfloss.com.

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