Anatomy And Physiology

Anatomy Physiology



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The human body is one of the most amazing pieces of work that has ever existed. Each and every human being starts their life as a single cell that gets half of its genetic makeup from the mother and half of the genetic makeup from the father. During the nine months following conception, this single cell divides into millions of cells that evolve to serve different functions for the human body. Though this in and of itself is an amazing fact about the human body, there are many more obscure facts about the human body that many people don't know.

1) 300,000,000 cells in the body die every minute.

One of the most amazing things about the human body is that the cells are constantly dividing. So though the number of cells that die in the body every minute sounds like a huge number, this is actually far less than one percent of the cells in the human body.

2) The human brain is the world's best hard drive.

Technically, the brain is able to store information from everything that a human being experiences in their life. In most cases, it will seem like this is not possible, but the reason that we can't remember everything is because of recall issues. The memories that have been stored in the brain can not always be accessed.

3) Every person's tongue print is unique.

Just as with fingerprints, there are no two people that have the same tongue print. The grooves and curves in the tongue are completely unique to each individual. Even identical twins will not have the same tongue print.

4) Humans shed.

Everyone is familiar with the shedding that cats and dogs experience with their fur. What most people don't realize, however, is that human beings shed as well. Human beings will shed approximately one and a half pounds of skin cells and particles during the course of a single year.

5) The stomach lining rapidly replaces itself.

The conditions inside the human stomach are very acidic. It is because of this that the lining of the stomach is completely replaced about two times each week. If the cells that make up the stomach lining did not rapidly reproduce, the stomach acids that the body uses to digest food would also eat away the stomach.

6) A human can survive in the absence of many internal organs.

Almost everyone knows a person that has had their tonsils removed and a lot of people know someone that has lost a kidney due to accident, cancer, or organ donation. However, most people don't realize that a person can continue to survive in the absence of their spleen, stomach, one lung and portions of their intestines and liver.

7) Each foot has 250,000 sweat glands.

This means that a pair of feet have a combined total of 500,000 sweat glands. This is the reason that many people will realize that they have sweaty feet on a regular basis. One person's feet can produce a total amount of one pint of sweat during the course of a single day.

8) The human body has 60,000 miles of blood vessels encased within it.

Human blood is used to transport oxygen to all of the different parts of the body. This means that there has to be blood vessels that reach all parts of the human body. The heart pumps the blood through the body and during the course of a day the heart will pump about 2000 gallons of blood.

9) Blondes have more hair.

The average number of hair follicles in the human body is 100,000. A blonde has the most hair follicles, averaging 146,000 hair follicles. A red-haired person has approximately 86,000 hair follicles. A person that has brown hair falls at average with 100,000 hair follicles on average.

10) A human can survive without food but not without sleep.

When a person has access to water, they are able to survive for more than a month without food. However, if a person experiences more than a couple of nights without sleep, a person will begin to experience psychological and personality changes. This is the reason that it is very important for a person to sleep regularly.

These are just some of the unusual facts about the human body that most people aren't aware of. A simple trip through an anatomy textbook will show you some of the other unusual facts about the human body that most people don't know. Study up on these and you will definitely win your next anatomy trivia night.

Sources:

http://news.upickreviews.com/facts-about-the-human-body

http://bsnprogram.com/2010/50-incredibly-weird-facts-about-the-human-body/

http://healthmad.com/medicine/10-unusual-facts-about-human-body/

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