Here are Some Amazing Facts About Your Human Body

Amazing facts about the human anatomy are fascinating to find. For example, an adult human's skeleton replaces itself every ten years. It contains four blood groups, and 206 bones. Two kidneys are also present. The human body is among the most complicated on Earth.

A skeleton of an adult human is replaced every tenth year

The human skull undergoes constant remodeling and rebuilding through adulthood. Bone cell function is crucial in bone remodeling and repair. A human's bone tissue is nearly replaced every day for the rest of his or her life. Osteoblasts is a term for bone cells. They are responsible for breaking down old bones and forming new ones. This process, known as bone remodeling is measured using a bone density measurement.

It has two lungs

Two lungs in the human body, called lobes or lungs, are located within the chest cavity. These organs exchange oxygen and remove carbon dioxide. Each lung is covered by a membrane, called a "pleura", which is connected to both the heart (and trachea) by the mainbronchus. Pleural membranes, which are thin, light and elastic, provide an air filter system. They allow air to pass through the nose and mouth into the lungs.

It has two earlobes

Despite being similar, the human ears are quite different. The complex network that makes up the earlobe, which allows us hear and walk, is complex. Women's ears tend to be larger than those of men. The average length of an ear is 2.5 inches. The ear lobe measures 0.74 inches in length and 0.77 inches in width. The ear lobes get larger with age, according to studies.

FAQ

What is the most mysterious area on earth?

Antarctica is one of the most mysterious places on Earth.

What is it that makes this place so interesting? Because it is unlike any place on Earth.

It is difficult to access because it is remote and extremely isolated. There is much more to this place than meets the eyes.

These wild animals are also found in this natural wonder.

Let's look at how this extraordinary destination became so mysterious.

Antarctica: The South Pole

Antarctica's name is a mystery. Some believe it is "land of the ice". Some believe it means "land of ice". Others believe it is Greek mythology.

In ancient Greece, Antarktis was the name given to the island where Zeus' twin brothers were born. One of the twins was said to have been born in winter. This is why the word "antarctic" was chosen.

Others believe that the name is a combination of the Greek words anti and tropos which mean against and turn. This would mean that the land was turned away by the sun.

Whatever the reason, Antarctica has always held a special fascination for people.

It is the continent with the lowest, windiest and highest temperatures. It is too cold for trees, plants and animals.

Yet, life is abundant in this frozen wilderness.

It is home to approximately 90 percent of all life on Earth. There are about 50% of the world's animal, plant and plant species.

What is Antarctica? Here water freezes to ice and not evaporates into the atmosphere.

This results in large masses of ice floating above the ground.

These floating glaciers make up 80%. These glaciers are getting larger each year.

So far, the Antarctic ice sheet has grown 60 feet since 1960.

If the melting goes on, the sea level may rise by as much as 200 feet. It could result in massive flooding all over the world.

However, not all scientists believe this to be bad news. Some scientists think global warming might be beneficial. According to scientists, global warming could be good for us because the melting of the ice sheets will accelerate, which can lead to floods that release toxic chemicals into our soil and bodies.

Others, however, warn that this theory sounds almost like a plot for a science fiction film.

What are 5 interesting facts about the liver?

The liver is responsible in breaking down toxins, storing vitamins and mineral, and for regulating blood pressure. It also regulates blood pressure, and maintains our body's temperature.

We hear it all the time: "I feel sluggish today" or "my head feels heavy". These symptoms could indicate liver problems.

Common signs include yellowing skin, dark urine, fatigue, nausea and vomiting, weight loss, stomach cramps (yellow coloration), itching, and jaundice (yellow colouration). These aren't all warning signs. You should immediately consult your doctor if you have any of these symptoms.

The liver is a vital organ. It is essential for detoxification and metabolism as well as reproduction.

1. An adult liver weighs around 1,400 grams.
2. The size of a baby's liver at birth is approximately half that of an adult. It can grow to four times the size of an infant's liver by the age 3.
3. The liver is located on the left side, just below your rib cage.
4. There are 16 major liver lobes. However there are many smaller, more intimate lobules.
5. The liver is home to approximately 10 million red blood cell units.

How does the brain control the functions in your body?

The brain communicates with other organs to ensure their cooperation. Your brain controls all that happens in your body. It tells your stomach to digest food and your lungs to breathe air; it tells your arms and legs to move.

Your brain is made up of billions upon billions of nerve cells that are connected together in groups called neuronal groups. Action potentials are electrical signals that neurons send to one another. Each neuron has its own cell membrane around its nucleus. Channels within the membrane allow ions such potassium and sodium to enter and leave the cells. Ion movement creates the electric charge that causes the neuron to fire.

Neurotransmitters are chemicals released when a neuron fires. Neurotransmitters attach to the receptors of the second neuron and open ions channels for ions to pass in and out. In turn, the second neuron also fires.

Neurotransmitter releases occur when a presynaptic neurons receives an input from another neuron. An impulse travels along a synapse that connects the two neurons. The transmitter binds to receptors on the postsynaptic neuron, triggering the firing of the postsynaptic neuron.

For communication within the nervous systems, neurotransmitters are essential. They also coordinate activity between different brain parts.

Which is the most secretive city in the world?

The answer may shock you. You might be uncomfortable with the truth of it, as it may challenge your perception of reality. There is a reason this place exists and it's not as you might expect.

It was known as the City of God to the ancient Greeks. In the Bible, it was known as the City of Destruction.

It's also known as Kashi (Kashmir) in India. It's also known as Novgorod in Russia.

But here in America, it goes by another name - The Town That Disappeared.

One tiny town in western New York State lost its 1,200 inhabitants without trace. It was abandoned without any remains, including no bodies, cars, or houses. The only thing that survived was a road sign, which pointed to its former location.

This tiny community disappeared without leaving any clues as to where it went or when. Some claim the earth swallowed it. Others claim that a meteorite hit destroyed it. Some believe that it was taken by aliens.

Whatever happened, the residents of this once-thriving community are convinced that their town isn't gone forever. They had just moved to another town.

There's even a website that tracks the disappearances and recoveries of Zugspitz.

Then, where is it? It's in Switzerland, actually!

The border of Austria and Germany is at Zugspitze. A huge lake, Lake Zugspitze, is located just beyond the summit.

It's always fascinated me how so many towns disappear, yet others remain. Why does some vanish while others remain? I decided to investigate.

I wanted to know more about the mysterious disappearing towns. What causes a community to disappear? How can one place vanish from existence?

There are many theories to explain the phenomenon of disappearing towns. One theory holds that a town disappears if all its buildings are demolished. Another theory suggests that the town simply moves somewhere else. Another theory suggests that the town has never existed.

Although theories may be a bit speculative, it is a fact that numerous towns have been destroyed by the elements. This video explores the history of these towns and examines their current state.

Statistics

• The average human adult male heart rate is between 70 and 72 beats per minute, while the average for adult women is between 78 and 82 beats, which is significantly faster, according to 2014 published in the Journal of Clinical and Diagnostic Research. (romper.com)
• In one 2014 study published in the Archives of Medical Science that sought to study the prevalence of these mites, research showed that 41% of the people had them hanging out in their eyelashes. (romper.com)
• In fact, according to the American Academy of Ophthalmology, you make 15 to 30 gallons of tears each year, which is insane when you think about it. (romper.com)
• In fact, nearly 24% of U.S. women are affected with one or more pelvic floor disorders, according to research funded by the National Institutes of Health. (romper.com)
• According to a 2018 study published in Free Radical Biology & Medicine, this is because blood pressure is regulated by our innate circadian rhythm and internal clock. (romper.com)

External Links

youtube.com

• YouTube

ncbi.nlm.nih.gov

• Demodex spp. in eyelash follicles in different populations - PMC
• A pilot study of tongue prints for biometric authentication - PMC

quora.com

• How many skin cell loss does one person experience over a lifetime.
• 50 Cent got shot nine times. How did he heal from his injuries?

theguardian.com

• Humans shine in the darkness
• Japanese companies encourage sleepy workers to work in Japan

How To

Secrets of the united states that became declassified

The United States offers a world of opportunities where everyone can succeed. However, there are also many secrets that have been kept quiet for years that could impact how we live.

These secrets include:

1. Over 5 million secret documents kept by the US government are not available to the public. These documents include information on UFO sightings and alien life forms. They also contain information about human cloning and assassination attempts against leaders around the world.
2. In 1947, President Harry Truman authorized the creation of the Central Intelligence Agency. This agency was created to assist the president in wartime decisions and protect America from foreign threats.
3. The CIA conducted mind control experiments without American citizens' consent. One of the most famous examples of this was Project MKUltra.
4. The U.S. military conducted tests on thousands of civilians during World War II. Some of these experiments involved the exposure of soldiers to mustard gas as well as biological weapons.
5. In 1992, the Pentagon admitted to conducting germ warfare testing on prisoners at Guantanamo Bay.
6. The CIA has secretly created prisons all over the globe, where it holds terror suspects and then sends them to countries such as Thailand, Poland, and Romania.
7. The CIA has also funded death squads that kill political dissidents throughout Latin America.
8. The US Air Force continues to engage in chemical warfare tests that violate multiple international treaties.
9. The Department of Defense frequently violates its rules regarding animal experimentation on humans.
10. The Coast Guard routinely breaks federal law by arresting protestors along coast waterways.
11. The Transportation Security Administration (TSA) conducts illegal searches on ordinary travelers at airports around the country.
12. Through armed drones, or "assassination squads", the CIA can carry out targeted killings outside of recognized battlefields.
13. The Office of Public Affairs (OPA) oversees the CIA. Yet, the CIA's employees secretly create alternative media articles which are then distributed to intelligence agencies as well as defense contractors. OPA writers claim that the truth about UFOs, aliens, 9/11, climate change, and other sensitive subjects have been withheld by national security forces who fear public awareness.
14. The US Air Force has obtained and maintains files on nearly 7 million Americans they consider subversive.
15. US Army uses undercover agents provocateurs to organise violent protests.
16. The NSA collects phone logs and credit card information and then shares it with companies to sell advertising.
17. The FBI has been stockpiling ammunition and guns since the 1980s, which most people won't know. The FBI now stores over 10 million ammo and over 1.5 billion gun rounds!
18. Homeland Security department built concentration camps that allow inmates to be detained, tortured and even killed. Members of Congress are not allowed to visit these detention centers.
19. The NSA is involved in domestic spying against journalists and activists. Their only crime is to criticize government officials or speak out against abuses.
20. The NSA performs massive computer surveillance against innocent citizens, many completely unrelated to terrorism.
21. The NSA conducts mass surveillance on cell phone and email accounts of foreign leaders and celebrities, members and judges of Congress, and even the President of the United States.
22. The NSA intercepts financial transactions and tracks the movements of private individuals.
23. The NSA spy on stock exchanges around the world and monitors energy production facilities.
24. Without obtaining search warrants the NSA hacks into computer networks, installing keystroke loggers and other software on computers.
25. Cyber warfare techniques are used by the NSA to degrade enemy communications systems.
26. The NSA monitors social networks such as Facebook and Twitter.
27. To impersonate hackers, the NSA creates fake online identities and spreads propaganda.
28. The NSA is able to infiltrate chat rooms and messageboards in order to gain personal data.
29. The NSA creates false personas to manipulate online discussion groups and forums.
30. The NSA has hired homeless people to install spyware in smart devices.