Internal Organs
Though we may not give them much thought unless they’re bothering us, our internal organs are what allow us to go on eating, breathing and walking around. Here are some things to consider the next time you hear your stomach growl.
1. The largest internal organ is the small intestine. Despite being called the smaller of the two intestines, your small intestine is actually four times as long as the average adult is tall. If it weren’t looped back and forth upon itself it wouldn’t fit inside the abdominal cavity.
2. The human heart creates enough pressure to squirt blood 30 feet. No wonder you can feel your heartbeat so easily. Pumping blood through your body quickly and efficiently takes quite a bit of pressure resulting in the strong contractions of the heart and the thick walls of the ventricles which push blood to the body.
3. The acid in your stomach is strong enough to dissolve razorblades. While you certainly shouldn’t test the fortitude of your stomach by eating a razorblade or any other metal object for that matter, the acids that digest the food you eat aren’t to be taken lightly. Hydrochloric acid, the type found in your stomach, is not only good at dissolving the pizza you had for dinner but can also eat through many types of metal.
4. The human body is estimated to have 60,000 miles of blood vessels. To put that in perspective, the distance around the earth is about 25,000 miles, making the distance your blood vessels could travel if laid end to end more than two times around the earth.
5. You get a new stomach lining every three to four days. The mucuslike cells lining the walls of the stomach would soon dissolve due to the strong digestive acids in your stomach if they weren’t constantly replaced. Those with ulcers know how painful it can be when stomach acid takes its toll on the lining of your stomach.
6. The surface area of a human lung is equal to a tennis court. In order to more efficiently oxygenate the blood, the lungs are filled with thousands of branching bronchi and tiny, grapelike alveoli. These are filled with microscopic capillaries which oxygen and carbon dioxide. The large amount of surface area makes it easier for this exchange to take place, and makes sure you stay properly oxygenated at all times.
7. Women’s hearts beat faster than men’s.The main reason for this is simply that on average women tend to be smaller than men and have less mass to pump blood to. But women’s and men’s hearts can actually act quite differently, especially when experiencing trauma like a heart attack, and many treatments that work for men must be adjusted or changed entirely to work for women.
8. Scientists have counted over 500 different liver functions. You may not think much about your liver except after a long night of drinking, but the liver is one of the body’s hardest working, largest and busiest organs. Some of the functions your liver performs are: production of bile, decomposition of red blood cells, plasma protein synthesis, and detoxification.
9. The aorta is nearly the diameter of a garden hose. The average adult heart is about the size of two fists, making the size of the aorta quite impressive. The artery needs to be so large as it is the main supplier of rich, oxygenated blood to the rest of the body.
10. Your left lung is smaller than your right lung to make room for your heart. For most people, if they were asked to draw a picture of what the lungs look like they would draw both looking roughly the same size. While the lungs are fairly similar in size, the human heart, though located fairly centrally, is tilted slightly to the left making it take up more room on that side of the body and crowding out that poor left lung.
11. You could remove a large part of your internal organs and survive. The human body may appear fragile but it’s possible to survive even with the removal of the stomach, the spleen, 75 percent of the liver, 80 percent of the intestines, one kidney, one lung, and virtually every organ from the pelvic and groin area. You might not feel too great, but the missing organs wouldn’t kill you.
12. The adrenal glands change size throughout life. The adrenal glands, lying right above the kidneys, are responsible for releasing stress hormones like cortisol and adrenaline. In the seventh month of a fetus’ development, the glands are roughly the same size as the kidneys. At birth, the glands have shrunk slightly and will continue to do so throughout life. In fact, by the time a person reaches old age, the glands are so small they can hardly be seen.
Showing posts with label know more. Show all posts
Showing posts with label know more. Show all posts
Facts: Hair and Nail
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human facts,
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Hair and Nails
While they’re not a living part of your body, most people spend a good amount of time caring for their hair and nails. The next time you’re heading in for a haircut or manicure, think of these facts.
1. Facial hair grows faster than any other hair on the body. If you’ve ever had a covering of stubble on your face as you’re clocking out at 5 o’clock you’re probably pretty familiar with this. In fact, if the average man never shaved his beard it would grow to over 30 feet during his lifetime, longer than a killer whale.
2. Every day the average person loses 60100 strands of hair. Unless you’re already bald, chances are good that you’re shedding pretty heavily on a daily basis. Your hair loss will vary in accordance with the season, pregnancy, illness, diet and age.
3. Women’s hair is about half the diameter of men’s hair. While it might sound strange, it shouldn’t come as too much of a surprise that men’s hair should be coarser than that of women. Hair diameter also varies on average between races, making hair plugs on some men look especially obvious.
4. One human hair can support 3.5 ounces. That’s about the weight of two full size candy bars, and with hundreds of thousands of hairs on the human head, makes the tale of Rapunzel much more plausible.
5. The fastest growing nail is on the middle finger. And the nail on the middle finger of your dominant hand will grow the fastest of all. Why is not entirely known, but nail growth is related to the length of the finger, with the longest fingers growing nails the fastest and shortest the slowest.
6. There are as many hairs per square inch on your body as a chimpanzee. Humans are not quite the naked apes that we’re made out to be. We have lots of hair, but on most of us it’s not obvious as a majority of the hairs are too fine or light to be seen.
7. Blondes have more hair. They’re said to have more fun, and they definitely have more hair. Hair color determines how dense the hair on your head is. The average human has 100,000 hair follicles, each of which is capable of producing 20 individual hairs during a person’s lifetime. Blondes average 146,000 follicles while people with black hair tend to have about 110,000 follicles. Those with brown hair fit the average with 100,000 follicles and redheads have the least dense hair, with about 86,000 follicles.
8. Fingernails grow nearly 4 times faster than toenails. If you notice that you’re trimming your fingernails much more frequently than your toenails you’re not just imagining it. The nails that get the most exposure and are used most frequently grow the fastest. On average, nails on both the toes and fingers grow about one tenth of an inch each month.
9. The lifespan of a human hair is 3 to 7 years on average. While you quite a few hairs each day, your hairs actually have a pretty long life providing they aren’t subject to any trauma. Your hairs will likely get to see several different haircuts, styles, and even possibly decades before they fall out on their own.
10. You must lose over 50% of your scalp hairs before it is apparent to anyone. You lose hundreds of hairs a day but you’ll have to lose a lot more before you or anyone else will notice. Half of the hairs on your pretty little head will have to disappear before your impending baldness will become obvious to all those around you.
11. Human hair is virtually indestructible. Aside from it’s flammability, human hair decays at such a slow rate that it is practically nondisintegrative. If you’ve ever wondered how your how clogs up your pipes so quick consider this: hair cannot be destroyed by cold, change of climate, water, or other natural forces and it is resistant to many kinds of acids and corrosive chemicals.
While they’re not a living part of your body, most people spend a good amount of time caring for their hair and nails. The next time you’re heading in for a haircut or manicure, think of these facts.
1. Facial hair grows faster than any other hair on the body. If you’ve ever had a covering of stubble on your face as you’re clocking out at 5 o’clock you’re probably pretty familiar with this. In fact, if the average man never shaved his beard it would grow to over 30 feet during his lifetime, longer than a killer whale.
2. Every day the average person loses 60100 strands of hair. Unless you’re already bald, chances are good that you’re shedding pretty heavily on a daily basis. Your hair loss will vary in accordance with the season, pregnancy, illness, diet and age.
3. Women’s hair is about half the diameter of men’s hair. While it might sound strange, it shouldn’t come as too much of a surprise that men’s hair should be coarser than that of women. Hair diameter also varies on average between races, making hair plugs on some men look especially obvious.
4. One human hair can support 3.5 ounces. That’s about the weight of two full size candy bars, and with hundreds of thousands of hairs on the human head, makes the tale of Rapunzel much more plausible.
5. The fastest growing nail is on the middle finger. And the nail on the middle finger of your dominant hand will grow the fastest of all. Why is not entirely known, but nail growth is related to the length of the finger, with the longest fingers growing nails the fastest and shortest the slowest.
6. There are as many hairs per square inch on your body as a chimpanzee. Humans are not quite the naked apes that we’re made out to be. We have lots of hair, but on most of us it’s not obvious as a majority of the hairs are too fine or light to be seen.
7. Blondes have more hair. They’re said to have more fun, and they definitely have more hair. Hair color determines how dense the hair on your head is. The average human has 100,000 hair follicles, each of which is capable of producing 20 individual hairs during a person’s lifetime. Blondes average 146,000 follicles while people with black hair tend to have about 110,000 follicles. Those with brown hair fit the average with 100,000 follicles and redheads have the least dense hair, with about 86,000 follicles.
8. Fingernails grow nearly 4 times faster than toenails. If you notice that you’re trimming your fingernails much more frequently than your toenails you’re not just imagining it. The nails that get the most exposure and are used most frequently grow the fastest. On average, nails on both the toes and fingers grow about one tenth of an inch each month.
9. The lifespan of a human hair is 3 to 7 years on average. While you quite a few hairs each day, your hairs actually have a pretty long life providing they aren’t subject to any trauma. Your hairs will likely get to see several different haircuts, styles, and even possibly decades before they fall out on their own.
10. You must lose over 50% of your scalp hairs before it is apparent to anyone. You lose hundreds of hairs a day but you’ll have to lose a lot more before you or anyone else will notice. Half of the hairs on your pretty little head will have to disappear before your impending baldness will become obvious to all those around you.
11. Human hair is virtually indestructible. Aside from it’s flammability, human hair decays at such a slow rate that it is practically nondisintegrative. If you’ve ever wondered how your how clogs up your pipes so quick consider this: hair cannot be destroyed by cold, change of climate, water, or other natural forces and it is resistant to many kinds of acids and corrosive chemicals.
Genaral facts to know 2
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facts,
general,
information,
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# Polar bears can eat as many as 86 penguins in a single sitting.
# The first McDonald's restaurant opened for business in 1952 in Edinburgh, Scotland, and featured the McHaggis sandwich.
# The Air Force's F-117 fighter uses aerodynamics discovered during research into how bumblebees fly.
# You *can* get blood from a stone, but only if contains at least 17 percent bauxite.
# Silly Putty was "discovered" as the residue left behind after the first latex condoms were produced. It's not widely publicized for obvious reasons.
# Approximately one-sixth of your life is spent on Wednesdays.
# The skin needed for elbow transplants must be taken from the scrotum of a cadaver.
# The sport of jai alai originated from a game played by Incan priests who held cats by their tails and swung at leather balls. The cats would instinctively grab at the ball with their claws, thus enabling players to catch them.
# A cat's purr has the same romance-enhancing frequency as the voice of singer Barry White.
# The typewriter was invented by Hungarian immigrant Qwert Yuiop, who left his "signature" on the keyboard.
# The volume of water that the Giant Sequoia tree consumes in a 24-hour period contains enough suspended minerals to pave 17.3 feet of a 4-lane concrete freeway.
# King Henry VIII slept with a gigantic axe.
# Because printed materials are being replaced by CD-ROM, microfiche and the Internet, libraries that previously sank into their foundations under the weight of their books are now in danger of collapsing in extremely high winds.
# In 1843, a Parisian street mime got stuck in his imaginary box and consequently died of starvation.
# Touch-tone telephone keypads were originally planned to have buttons for Police and Fire Departments, but they were replaced with * and # when the project was cancelled in favor of developing the 911 system.
# Human saliva has a boiling point three times that of regular water.
# Calvin, of the "Calvin and Hobbes" comic strip, was patterned after President Calvin Coolidge, who had a pet tiger as a boy.
# Watching an hour-long soap opera burns more calories than watching a three-hour baseball game.
# Until 1978, Camel cigarettes contained minute particles of real camels.
# You can actually sharpen the blades on a pencil sharpener by wrapping your pencils in aluminum foil before inserting them.
# To human taste buds, Zima is virtually indistinguishable from zebra urine.
# Seven out of every ten hockey-playing Canadians will lose a tooth during a game. For Canadians who don't play hockey, that figure drops to five out of ten.
# A dog's naked behind leaves absolutely no bacteria when pressed against carpet.
# A team of University of Virginia researchers released a study promoting the practice of picking one's nose, claiming that the health benefits of keeping nasal passages free from infectious blockages far outweigh the negative social connotations.
# Among items left behind at Osama bin Laden's headquarters in Afghanistan were 27 issues of Mad Magazine. Al Qaeda members have admitted that bin Laden is reportedly an avid reader.
# Urine from male cape water buffaloes is so flammable that some tribes use it for lantern fuel.
# At the first World Cup championship in Uruguay, 1930, the soccer balls were actually monkey skulls wrapped in paper and leather.
# Every Labrador retriever dreams about bananas.
# If you put a bee in a film canister for two hours, it will go blind and leave behind its weight in honey.
# Due to the angle at which the optic nerve enters the brain, staring at a blue surface during sex greatly increases the intensity of orgasms.
# Never hold your nose and cover your mouth when sneezing, as it can blow out your eyeballs.
# Centuries ago, purchasing real estate often required having one or more limbs amputated in order to prevent the purchaser from running away to avoid repayment of the loan. Hence an expensive purchase was said to cost "an arm and a leg."
# When Mahatma Gandhi died, an autopsy revealed five gold Krugerrands in his small intestine.
# Aardvarks are allergic to radishes, but only during summer months.
# Coca-Cola was the favored drink of Pharaoh Ramses. An inscription found in his tomb, when translated, was found to be almost identical to the recipe used today.
# If you part your hair on the right side, you were born to be carnivorous. If you part it on the left, your physical and psychological make-up is that of a vegetarian.
# When immersed in liquid, a dead sparrow will make a sound like a crying baby.
# In WWII the US military planned to airdrop over France propaganda in the form of Playboy magazine, with coded messages hidden in the models' turn-ons and turn-offs. The plan was scrapped because of a staple shortage due to rationing of metal.
# Although difficult, it's possible to start a fire by rapidly rubbing together two Cool Ranch Doritos.
# Napoleon's favorite type of wood was knotty chestnut.
# The world's smartest pig, owned by a mathematics teacher in Madison, WI, memorized the multiplication tables up to 12.
# Due to the natural "momentum" of the ocean, saltwater fish cannot swim backwards.
# In ancient Greece, children of wealthy families were dipped in olive oil at birth to keep them hairless throughout their lives.
# It is nearly three miles farther to fly from Amarillo, Texas to Louisville, Kentucky than it is to return from Louisville to Amarillo.
# The "nine lives" attributed to cats is probably due to their having nine primary whiskers.
# The original inspiration for Barbie dolls comes from dolls developed by German propagandists in the late 1930s to impress young girls with the ideal notions of Aryan features. The proportions for Barbie were actually based on those of Eva Braun.
# The Venezuelan brown bat can detect and dodge individual raindrops in mid-flight, arriving safely back at his cave completely dry.
# The first McDonald's restaurant opened for business in 1952 in Edinburgh, Scotland, and featured the McHaggis sandwich.
# The Air Force's F-117 fighter uses aerodynamics discovered during research into how bumblebees fly.
# You *can* get blood from a stone, but only if contains at least 17 percent bauxite.
# Silly Putty was "discovered" as the residue left behind after the first latex condoms were produced. It's not widely publicized for obvious reasons.
# Approximately one-sixth of your life is spent on Wednesdays.
# The skin needed for elbow transplants must be taken from the scrotum of a cadaver.
# The sport of jai alai originated from a game played by Incan priests who held cats by their tails and swung at leather balls. The cats would instinctively grab at the ball with their claws, thus enabling players to catch them.
# A cat's purr has the same romance-enhancing frequency as the voice of singer Barry White.
# The typewriter was invented by Hungarian immigrant Qwert Yuiop, who left his "signature" on the keyboard.
# The volume of water that the Giant Sequoia tree consumes in a 24-hour period contains enough suspended minerals to pave 17.3 feet of a 4-lane concrete freeway.
# King Henry VIII slept with a gigantic axe.
# Because printed materials are being replaced by CD-ROM, microfiche and the Internet, libraries that previously sank into their foundations under the weight of their books are now in danger of collapsing in extremely high winds.
# In 1843, a Parisian street mime got stuck in his imaginary box and consequently died of starvation.
# Touch-tone telephone keypads were originally planned to have buttons for Police and Fire Departments, but they were replaced with * and # when the project was cancelled in favor of developing the 911 system.
# Human saliva has a boiling point three times that of regular water.
# Calvin, of the "Calvin and Hobbes" comic strip, was patterned after President Calvin Coolidge, who had a pet tiger as a boy.
# Watching an hour-long soap opera burns more calories than watching a three-hour baseball game.
# Until 1978, Camel cigarettes contained minute particles of real camels.
# You can actually sharpen the blades on a pencil sharpener by wrapping your pencils in aluminum foil before inserting them.
# To human taste buds, Zima is virtually indistinguishable from zebra urine.
# Seven out of every ten hockey-playing Canadians will lose a tooth during a game. For Canadians who don't play hockey, that figure drops to five out of ten.
# A dog's naked behind leaves absolutely no bacteria when pressed against carpet.
# A team of University of Virginia researchers released a study promoting the practice of picking one's nose, claiming that the health benefits of keeping nasal passages free from infectious blockages far outweigh the negative social connotations.
# Among items left behind at Osama bin Laden's headquarters in Afghanistan were 27 issues of Mad Magazine. Al Qaeda members have admitted that bin Laden is reportedly an avid reader.
# Urine from male cape water buffaloes is so flammable that some tribes use it for lantern fuel.
# At the first World Cup championship in Uruguay, 1930, the soccer balls were actually monkey skulls wrapped in paper and leather.
# Every Labrador retriever dreams about bananas.
# If you put a bee in a film canister for two hours, it will go blind and leave behind its weight in honey.
# Due to the angle at which the optic nerve enters the brain, staring at a blue surface during sex greatly increases the intensity of orgasms.
# Never hold your nose and cover your mouth when sneezing, as it can blow out your eyeballs.
# Centuries ago, purchasing real estate often required having one or more limbs amputated in order to prevent the purchaser from running away to avoid repayment of the loan. Hence an expensive purchase was said to cost "an arm and a leg."
# When Mahatma Gandhi died, an autopsy revealed five gold Krugerrands in his small intestine.
# Aardvarks are allergic to radishes, but only during summer months.
# Coca-Cola was the favored drink of Pharaoh Ramses. An inscription found in his tomb, when translated, was found to be almost identical to the recipe used today.
# If you part your hair on the right side, you were born to be carnivorous. If you part it on the left, your physical and psychological make-up is that of a vegetarian.
# When immersed in liquid, a dead sparrow will make a sound like a crying baby.
# In WWII the US military planned to airdrop over France propaganda in the form of Playboy magazine, with coded messages hidden in the models' turn-ons and turn-offs. The plan was scrapped because of a staple shortage due to rationing of metal.
# Although difficult, it's possible to start a fire by rapidly rubbing together two Cool Ranch Doritos.
# Napoleon's favorite type of wood was knotty chestnut.
# The world's smartest pig, owned by a mathematics teacher in Madison, WI, memorized the multiplication tables up to 12.
# Due to the natural "momentum" of the ocean, saltwater fish cannot swim backwards.
# In ancient Greece, children of wealthy families were dipped in olive oil at birth to keep them hairless throughout their lives.
# It is nearly three miles farther to fly from Amarillo, Texas to Louisville, Kentucky than it is to return from Louisville to Amarillo.
# The "nine lives" attributed to cats is probably due to their having nine primary whiskers.
# The original inspiration for Barbie dolls comes from dolls developed by German propagandists in the late 1930s to impress young girls with the ideal notions of Aryan features. The proportions for Barbie were actually based on those of Eva Braun.
# The Venezuelan brown bat can detect and dodge individual raindrops in mid-flight, arriving safely back at his cave completely dry.
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