Unusual Facts About Human Body Part II

Unusual Facts About Human Body Part II
Image Source"Anatomy of the Human Ear" by Chittka L, Brockmann - Perception Space—The Final Frontier, A PLoS Biology Vol. 3, No. 4, e137 doi:10.1371/journal.pbio.0030137 (Fig. 1A/Large version), vectorised by Inductiveload. Licensed under CC BY 2.5 via Wikimedia Commons - https://commons.wikimedia.org/wiki/File:Anatomy_of_the_Human_Ear.svg#/media/File:Anatomy_of_the_Human_Ear.svg

1. The human body contains more than 600 muscles 

2. The body contains 206 bones, of which more than half are located in the hands and feet.

3. The legs and feet withstand up to 5,000 pounds of pressure per square inch when running.

4. The hand is the apex of the body’s engineering design; 25 joints allowing 58 distinctly different motions, which makes the hand the most versatile instrument on earth.

5. The female ovaries contain nearly half-a-million egg cells, yet only 400 or so will ever get the opportunity to create a new life.

6. The female releases on egg a month; the human male produces two hundred million sperm or more a day.

7. Sperm and ovum unite to form a zygote, believed to contain the blueprint for a creature of 60 trillion cells in a package no bigger than the point of a pin.

8. The ear’s malleus, incus and stapes (otherwise known as the hammer, anvil and stirrup) are the smallest bones in the human body. All three together could fit together on a penny.

9. The ear continues to hear sounds, even while you sleep.

10. Sound travels at the speed of 1,130 feet per second, or 770 miles per hour.

11. Dogs can hear much higher frequencies than humans.

12. Ears not only help you hear, but also aid in balance.  Snakes hear through the jaw bone and through a traditional inner ear. In essence, snakes have two distinct hearing mechanisms, which helps them hear and catch prey.

13. Sitting in front of the speakers at a rock concert can expose you to 120 decibels, which will begin to damage hearing in only 7 1/2 minutes.

14. Thirty-seven percent of children with only minimal hearing loss fail at least one grade.

15. The longest recorded bout of hiccups lasted 65 years. That’s not a bout, it’s a lifetime!


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