Tag: Parts of Body

  • Brain Facts For Kids | Top 15 Mind-Blowing Facts about Human Brain

    Brain Facts For Kids | Top 15 Mind-Blowing Facts about Human Brain

    The brain is probably the most important organ of the human body. At some levels, it can be compared to a very powerful computer. It stores vital information and controls all our movements and reactions. As it turns out, brain is the center of nervous system consequently all the tiniest thoughts and biggest decisions rely on it. However, some areas of the brain and their functionality are not completely studied as this organ becomes more and more complex each day thanks to evolution. I am sure that there are amassing things that you don’t know yet about your brain, so if you want to learn the most interesting Brain Facts for Kids, stick to end.

    Brain Facts For Kids

    Human brain has long been admired as well as misinterpreted throughout the several courses of history. Many philosophers or thinkers came up with their discoveries about brain; some were correct while others proved to be false centuries later. ‘The brain is the commander of speech and movement,’ said Galen, a famed anatomist. In this article we’re going to discuss the size, significance, functions, purpose, and many other amazing facts about human brain.

    The three-pound fatty tissue may seem trivial when we compare it to the human body, it is nevertheless the central part of the body and scientists regard it as the most complex living structure in the entire universe. Each new day scientists come up with new discoveries or inventions by using this spongy tissue. These human advancements force us to believe that human brain is much more than a mere supercomputer or a telephone switchboard. Every single function of the human body relies on brain for movements, memory, emotion, and even learning. It is our brain that figures our imaginations, feelings, thought processes, hopes, and dreams. In a nutshell, it is the brain which makes human a human.

    How does it look and feel?

    If you have never seen a brain, you probably wonder how it looks and feels. Its colour is pale pink and it has a jelly-like texture, as it is made from 75% water.

    Does size matter?

    Human brain weighs around 3 pounds (1.3 – 1.4 kg). It is the largest brain when we compare it with other mammals’ brain. Although you might think that brains of elephants and whales are much larger, it’s true they are. But in relation to the body size, human brain is the largest one. However, size has nothing to do with the intellectual capability.

    How many nerve cells does a brain?

    The exact number of brain cells in a human brain has not been established yet, although it is known there are about 100 billion. Another interesting fact is that babies lose about 50% of their neurons at birth.  Before they are born, unused neurons are eliminated.

    Does the brain suffer from disease?

    Yes, there are illnesses that limit the brain’s capability to function properly. Such diseases are Alzheimer’s disease, Parkinson’s or multiple sclerosis.

    Thoughts

    According to an estimate, the average number of thoughts held by a normal person is 70,000 every day. Even the tiniest thought forms a connection in our brains.

    2Do we really use 10% of our brain?

    This is a myth that has no real grounds whatsoever. We use the full capacity of our brain each day. For example, let’s say that you are eating chips while reading this article. You are using almost all your brain capacity. While you read, the frontal lobes are working because they are responsible for thinking. The parietal lobes of your brain are in charge of taste and smell and they are also active. Finally, the temporal lobes assist you hearing, while the occipital lobes help you process the writing on this site. So there you have it! Your entire brain is 100% working for such a simple activity as this.

    Brain in love

    Is the brain responsible for our feelings of love or hate? Scientist believes it is. The brain secrets ocytocin, a hormone which is also called the “love hormone”. This hormone is secreted when a mother nurses her children or when two people are hugging or holding hands and encourages bonding between human beings, trust and affection.

     How good our short term memory is?

    The short term memory or working memory of a normal human is not very good. This brain lets us hold on to the idea just long enough to process it. It has been scientifically proved that our working memory can only hold 7 digits.

    When does the brain stop growing?

    The brain stops growing at the age of 18 years.

    When our brain functions?

    Oddly enough, the entire brain begins to function while are asleep and not when we are awake.

    Can our brain feel pain?

    No, it can’t. When we have a headache, it’s our muscles and nerves who hurt, not our brain.

    How much energy does the brain have?

    Our brains have 12-23 watts of energy, which would be enough to power a light bulb.

    How Many Disorders of Brain Exist Today?

    Scientists claim that there are 1,000 disorders of brain and nervous system which are incomparable to any other disease group. No other human organ exhibits as many disorders as the human brain. In America, every year brings $460 billion worth neurological disorders leaving 50 million Americans on hold.

    Brain Plasticity

    Thanks to our brain which allow us to cope with changing environments by modifying neural connections accordingly. Scientists go into the root cause of the molecular process which they call it as the ‘brain plasticity’. These discoveries led many scientists to believe new approaches to the treatment of chronic pain.

    Sensation and Perception | Brain Facts for Kids  

    Vision is the foremost function the human brain performs. Unlike for any other sense, about one-fourth of the human brain is engaged in visual processing. Our eyes capture the image upside down and it’s our brain that makes it

    Smallest Brain

    The smallest brain ever recorded in the history measured around 2.41 pounds. That brain was in the woman who died in 1977.

  • Heart Facts for Kids | Top 15 Amazing Facts about Heart

    Heart Facts for Kids | Top 15 Amazing Facts about Heart

    Put your hand on the upper left side of your chest, do you feel a thump? That’s your heart beating in your chest. The heart is one of the most important organs in your body. It is a hollow muscle, but what makes it unique and important is what it actually does. The heart is responsible for producing and supplying blood to your entire body. This is made possible by the chambers and valves in the heart. Let’s move forward to enjoy some more heart facts for kids.

    There are four chambers in the heart; two atria (upper chambers) and two ventricles (lower chambers). The atria are responsible for supplying blood to the lungs and back to the heart. While the ventricles have the tough job of supplying blood to the rest of the body; your legs, feet, arms and even the brain. Valves are responsible for transmitting blood out of the chambers and ensuring there is no backflow. The blood is then carried to the entire body using the circulation system.

    The circulation system consists of veins, arteries and capillaries. Arteries carry oxygen rich blood away from your heart to the extremities of your body. Veins carry oxygen depleted blood back to your heart. Capillaries are very small veins or arteries. They are small enough that the oxygen can diffuse across the capillary wall into the tissue, and the carbon dioxide can diffuse from the tissue back into the blood. Capillaries are the structure where this gas exchange takes place.

    However, that’s not all there is to the heart. Want to learn more about it? Read these Human Heart Facts For Kids

    Interesting Heart Facts For Kids

    Want to know the size of your heart? Close your hand and make a fist. If you are a kid, your heart is the size of one fist; however, an adult’s heart is the size of two fists.

    If you could stretch out your arteries, veins and capillaries, they would be over 60,000 miles long.

    How much blood can your heart really make? An adult heart typically pumps around 5 quarts of blood each minute. That’s around 2,000 gallons of blood each day. In a lifetime, an average person makes around 1 million barrels of blood.

    Take a tennis ball and squeeze it. It’s hard, right? Your heart pumping is just like that. It’s a good thing that you have a strong heart!

    Most people think their heart is on the left side of their chest. However, the heart is actually located in the center of the chest in between the lungs. The tip of the heart is closer to the left, that’s why you feel it beating on your left.

    A woman’s heart typically beats faster than a man’s. An average man’s heart beats about 70 times a minute, and an average woman’s heart beats around 78 times per minute.

    Women also might have smaller hearts than men. An average adult woman’s heart weighs around 8 ounces, while a man’s about 10 ounces.

    How many times does your heart beat? The average heart beats 100,000 times each day. In a 70 year time frame, that’s over 2.5 million beats!

    The words Atrium and ventricle have Latin origins. They mean “Entrance hall” and “Little belly” respectively.

    Your blood is made up of 78 percent of water.

    Typically blood takes about 20 seconds to circulate through your entire vascular system.

    The heart sound, thump-thump, you hear? It is produced by the closing of the four atrioventricular valves.

    According to the early Egyptians, the heart and other such major organs had a mind of their own and could move throughout the body as they please.

    Where does all the blood go? 5% of blood supplies the heart, 15-20% goes to the brain and central nervous system, and 22% goes to the kidneys.

    Learn more: Brain Facts

    The heart has its own electrical impulses which help it to beat. Interestingly, this also enables the heart beat on its own, even if it is detached from the body—if the right amount of oxygen is provided. This is what makes heart transplant possible.

    The first successful heart transplant was performed by Christiaan Barnard in Cape Town, Africa in 1967.

    It is very important that you keep yourself and your heart healthy. Research shows that around 2700 people die of heart disease. So, remember to eat healthy and exercise for at least 30 minutes every day!