Anatomy And Physiology

Facts about the Human Body



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The human body comprises of multiple system that are collectively organized to form life. They are also a prearranged collection of tissue that performs specific purpose. Take into account these ten unusual facts about the human body.

1)      The digestive system (A Queue)

The digestive system is a queue in which insertion (food) occurs at one end called the mouth and deletion (waste) occur at the other end called the anus.

The mouth which is the first place for digestion to take place can produce about three pints of saliva a day. The normal human esophagus is approximately 1 inch in diameter and about 10 to 14 inches in length. The stomach produces approximately two quarts of hydrochloric acid a day. An average human stomach can hold about 48 ounce of food substance. The small intestine is approximately 1.5 to 2 inches in width and when stretched out, it can measure about 22 feet in length. The colon or large intestine is about 3 to 4 inches in width and measures approximately 5 feet in length, and it contains more than 5,800 distinct species of bacteria, of which most are harmless and beneficial to the body. [1]  

2)      The human eye (symbol of judgment)

The eye has the ability of moving hundreds of muscles in the human body.  A matured individual’s eyeball measures about one inch in diameter and the visible portion of the eyes accounts for only one-sixth of its exterior area. Under optical situations, the human eye is capable of seeing light from a candle approximately 14 miles away. [2]

3)      The human liver (the biggest organ in the human body)

The human liver is the biggest organ in the body. It filters more than a liter of blood every minute including different toxins such as alcohols, chemicals and pesticides by liquefying them and turning them into waste products to be excreted out as urine. [3] 

4)      Bones and skeletal system (the strongest material in the body)

At birth, humans have about 300 bones later in life during adult hood, these bones reduces to about 206 by fusing together. The human face contains 14 bones. The hyoid bone in the throat is the only bone that’s not connected to any other bone in the body. Human beings and giraffes have equal numbers of bones in their necks. However, the giraffe’s vertebra is much longer. The smallest bones in the human body are the three bones located in the middle ear, which are the hammer, anvil and the stirrup. The pelvic bone is the largest bone in the body. The longest bone in the human body is the femur bone (the thigh bone) which is located in the legs. It amounts to about one quarter of the body’s height. [4]      

5)      Growth and development (evolution)

 Boys and girls have different growth rate. From age 0 to 2 both grow on an average of 13 to 15 inches. From 2 to 5 years, both boys and girls grow between 8 to 10 inches. From 5 to 12 years, boys grow 13 to 18 inches while girls grow15 to 18 inches. From the age of 12 to 20, boys grow 10 inches while girls grow between 4 to 5 inches. [5]

6)      The human brain (center of intelligence)

The human brain is the most complex organ in the human body. It is responsible for individual’s peculiarity such as emotions, personality, thoughts and language. The human brain weighs about three pounds. The human brain contains masses of fat and proteins consisting of about 100 billion nerve cells and millions of nerve fibers. The brain can generate energy sufficient enough to light up a bulb. The brain uses 20 percent of the oxygen required by the body. The number of nerve cells in the brain is greater than the congregation of stars in the sky. [6] 

7)      The circulatory system (distribution or communication)

The human circulatory system serves as an interface between organs such as the hearth, arteries, veins and capillaries. The human heart beat around 30 million times in a year, during which it pumps about 4,000 gallons of blood on a daily basis. An average adult has about 10pts of flood in the body, while a 3- year old child has approximately 2pts of blood in his/her body. A healthy heart beat moves approximately 60 to 90 ml of blood across the heart. However, death usually occurs within a time frame of four minutes if the heart stops beating. If the arteries, veins and capillaries were all laid out in the same way, they would cover a distant of more than 60,000 miles. A single blood cell can travel through the whole systemic and pulmonary circulatory system in approximately 30 seconds. [7]   

8)      The human hand (symbol of representing protection)

The human hand contains 9 feet of blood vessels per square inch, 48 nerves, 123 ligaments and 29 major joints. The entire muscles that controls the fingers are not situated in the fingers, 18 of them are situated in the forearm and17 are situated in the palm. Finger nails grow approximately 1/10 inch each month and four times rapidly, when compared to the toenails. The hands are used to convey words and phrases by the hearing impaired via a language known as sign language. [8]

9)      Nervous system (network of nerves)

The nervous systems are cellular network that check the internal and external environments of humans. The human body has about 30 million nerve cells, which can send out 1,000 impulses per seconds. [9]

10)  The nose (talent for discovery)

Humans have the ability to smell because of the two small odor-detecting patches located in the nasal passage which is made up of about 6 million cells. Female sense of sense is sharper than the male. A normal Human can perceive about 10,000 odors which is far lesser than what most animals can perceive. About 1 to 2 percent of Americans suffer from damages to their sense of smell. However, a greater number of them are above the age of 65. [10]  

REFERENCES:

[1]

http://digestive.niddk.nih.gov/ddiseases/pubs/yrdd/

http://www.nexiumresearch.com/2008/06/09/digestive-system-facts/

http://esciencenews.com/articles/2008/11/18/gut.check.reveals.vast.multicultural.community.bugs.bowels


[2]

http://www.britannica.com/EBchecked/topic/199272/eye

http://www.bouldereyesurgeons.com/page7/page5/page5.html


[3]

http://heppoworld.com/liverfacts.html

http://www.stlukestexas.com/Aboutus/pagenotfound.cfm


[4]

http://ellerbruch.nmu.edu/classes/cs255w03/cs255students/shboyer/P12/facts.pdf

http://www.science.uwa.edu.au/courses/facts/humanbiol

http://www.kraft.com.au/Products/ProductList/C/Cheese/CheeseArticles/BoneFacts.htm

http://www.bodyworlds.com/Downloads/did_you_know.pdf

http://yucky.discovery.com/noflash/body/pg000124.html

http://www.medindia.net/know_ur_body/anatomy-of-skeletal-system.asp

http://www.newworldencyclopedia.org/entry/Human_body


[5]

http://childdevelopmentinfo.com/child-development/normaldevelopment.shtml

http://www.child-development-guide.com/child-development-milestone.html

http://kidshealth.org/kid/grow/boy/boys_puberty.html#


[6]

http://www.physorg.com/news171213840.html

http://uwf.edu/jgould/BrainFacts.pdf

http://science.nationalgeographic.com/science/health-and-human-body/human-body/brain-article.html

http://www.cedars-sinai.edu/Patients/Programs-and-Services/Neurology/Treatments-and-Programs/

http://wwwchem.csustan.edu/chem4400/SJBR/Olson01.htm

http://www.fi.edu/learn/brain/micro.html


[7]

http://www.drstandley.com/bodysystems_cardiovascular.shtml

http://encarta.msn.com/encyclopedia_761566878/circulatory_system.html

http://www.fi.edu/learn/heart/systems/circulation.html


[8]

http://www.eatonhand.com/hw/facts.htm


[9]

http://faculty.washington.edu/chudler/nsdivide.html

http://www.emc.maricopa.edu/faculty/farabee/BIOBK/BioBookNERV.html#The%20Brain

http://serendip.brynmawr.edu/bb/kinser/Nerve8.html


[10]

http://www.yourplasticsurgeryguide.com/rhinoplasty/howperformed.htm

http://www.senseofsmell.org/

http://www.sirc.org/publik/smell_human.html

http://www.sciencedaily.com/releases/2005/01/050110123857.htm

http://www.mayoclinic.com/health/rhinoplasty/MY00425/DSECTION=what-you-can-expect

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ARTICLE SOURCES AND CITATIONS
  • InfoBoxCallToAction ActionArrowhttp://digestive.niddk.nih.gov/ddiseases/pubs/yrdd/
  • InfoBoxCallToAction ActionArrowhttp://www.nexiumresearch.com/2008/06/09/digestive-system-facts/
  • InfoBoxCallToAction ActionArrowhttp://esciencenews.com/articles/2008/11/18/gut.check.reveals.vast.multicultural.community.bugs.bowels
  • InfoBoxCallToAction ActionArrowhttp://www.britannica.com/EBchecked/topic/199272/eye
  • InfoBoxCallToAction ActionArrowhttp://www.bouldereyesurgeons.com/page7/page5/page5.html
  • InfoBoxCallToAction ActionArrowhttp://heppoworld.com/liverfacts.html
  • InfoBoxCallToAction ActionArrowhttp://www.stlukestexas.com/Aboutus/pagenotfound.cfm
  • InfoBoxCallToAction ActionArrowhttp://ellerbruch.nmu.edu/classes/cs255w03/cs255students/shboyer/P12/facts.pdf
  • InfoBoxCallToAction ActionArrowhttp://www.science.uwa.edu.au/courses/facts/humanbiol
  • InfoBoxCallToAction ActionArrowhttp://www.kraft.com.au/Products/ProductList/C/Cheese/CheeseArticles/BoneFacts.htm
  • InfoBoxCallToAction ActionArrowhttp://www.bodyworlds.com/Downloads/did_you_know.pdf
  • InfoBoxCallToAction ActionArrowhttp://yucky.discovery.com/noflash/body/pg000124.html
  • InfoBoxCallToAction ActionArrowhttp://www.medindia.net/know_ur_body/anatomy-of-skeletal-system.asp
  • InfoBoxCallToAction ActionArrowhttp://www.newworldencyclopedia.org/entry/Human_body
  • InfoBoxCallToAction ActionArrowhttp://childdevelopmentinfo.com/child-development/normaldevelopment.shtml
  • InfoBoxCallToAction ActionArrowhttp://www.child-development-guide.com/child-development-milestone.html
  • InfoBoxCallToAction ActionArrowhttp://kidshealth.org/kid/grow/boy/boys_puberty.html#
  • InfoBoxCallToAction ActionArrowhttp://www.physorg.com/news171213840.html
  • InfoBoxCallToAction ActionArrowhttp://uwf.edu/jgould/BrainFacts.pdf
  • InfoBoxCallToAction ActionArrowhttp://science.nationalgeographic.com/science/health-and-human-body/human-body/brain-article.html
  • InfoBoxCallToAction ActionArrowhttp://www.cedars-sinai.edu/Patients/Programs-and-Services/Neurology/Treatments-and-Programs/
  • InfoBoxCallToAction ActionArrowhttp://wwwchem.csustan.edu/chem4400/SJBR/Olson01.htm
  • InfoBoxCallToAction ActionArrowhttp://www.fi.edu/learn/brain/micro.html
  • InfoBoxCallToAction ActionArrowhttp://www.drstandley.com/bodysystems_cardiovascular.shtml
  • InfoBoxCallToAction ActionArrowhttp://encarta.msn.com/encyclopedia_761566878/circulatory_system.html
  • InfoBoxCallToAction ActionArrowhttp://www.fi.edu/learn/heart/systems/circulation.html
  • InfoBoxCallToAction ActionArrowhttp://www.eatonhand.com/hw/facts.htm
  • InfoBoxCallToAction ActionArrowhttp://faculty.washington.edu/chudler/nsdivide.html
  • InfoBoxCallToAction ActionArrowhttp://www.emc.maricopa.edu/faculty/farabee/BIOBK/BioBookNERV.html#The%20Brain
  • InfoBoxCallToAction ActionArrowhttp://serendip.brynmawr.edu/bb/kinser/Nerve8.html
  • InfoBoxCallToAction ActionArrowhttp://www.yourplasticsurgeryguide.com/rhinoplasty/howperformed.htm
  • InfoBoxCallToAction ActionArrowhttp://www.senseofsmell.org/
  • InfoBoxCallToAction ActionArrowhttp://www.sirc.org/publik/smell_human.html
  • InfoBoxCallToAction ActionArrowhttp://www.sciencedaily.com/releases/2005/01/050110123857.htm
  • InfoBoxCallToAction ActionArrowhttp://www.mayoclinic.com/health/rhinoplasty/MY00425/DSECTION=what-you-can-expect