10 Facts About Our Body You Didn’t Know
The human body is one of the most complex systems that has ever existed. We may know some common things about its intricate mechanisms, but there are still facts that remain as mysteries unexplored by most of us. Here are some of the details about our body you didn’t know.
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Cell Hair Is Everywhere
Our body’s cells have hair-like organelles called cilia that aid in several functions, depending on their location. Cilia assist in getting mucus out of our nose when we sneeze, and it traps particles, together with cerumen (earwax), that go deep inside our ears.
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We Are All Supposedly White
Human skin color is principally cream white, but some factors create the great variation. A natural yellow pigment affects its color. Blood vessels on the surface of our skin gives it a touch of red. And the dark shade is brought by big amounts of melanin that are produced due to exposure to ultraviolet rays.
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One Egg Matures Per Month
Out of the thousands of eggs that are manufactured by ovaries, only one egg per month matures, and the rest are unused and flushed out during the menstrual cycle. That makes it only about 350 eggs in a woman’s lifetime.
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We Secrete HCl
In order to digest food properly, stomach cells secrete hydrochloric acid, a substance known to be highly corrosive. But it also secretes mucous that coats the organ to prevent the acid from damaging it. This explains the burning sensation we feel when gastric matter goes up our esophagus.
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Brain Utilizes 1/5 Of Oxygen Intake
The human brain needs lots of oxygen so as to carry out its functions. There are three major cerebral arteries that are responsible for delivering this vital element to our head. If these arteries get blocked or damaged, the oxygen flow will be disrupted and certain regions in our brain will stop working.
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Puberty Affects Psyche
Some hormones, like testosterone, affect the growth of neurons of the brain during puberty. Certain emotional implications can be attributed to this phenomenon, like discomfort in emotional situations, defiance and indifference, and poor judgment skills.
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Bones Aid In Normalizing Mineral Levels
Bones, besides the fact that it supports the structure of muscles and organs, contain calcium, which is needed by nerves and muscles. When we lack supply of the mineral, certain hormones break down our bones until the right balance of calcium levels are achieved.
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We Have Useless Body Parts
Humans are continuously evolving through time. An implication of this is the presence of vestigial or useless body parts, like the coccyx (tailbone), which are believed to be used by our ancestors who did not know then how to walk upright, and wisdom teeth, which are said to be from our large-jawed predecessors.
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Body Posture Help Memory Retrieval
Memories are connected with our sensory perception. Smelling, hearing, or seeing things that were present in the past can help in retrieving lost memory. Another efficient way to bring back the past is to position the body similar to the posture executed during the event.
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Connection Doesn’t Always Need Words
Studies have shown that yawns can be viewed as an insinuation of empathy, not just boredom and lethargy. Other complex but ordinary behaviors such as laughter and crying can also induce mimicry and establish social ties within a group.
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One Response to “10 Facts About Our Body You Didn’t Know”
On May 2, 2008 at 2:38 am
Nice work… good luck and God bless! ^__^
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