Ion Impulse

The brain rather than a PC

Pride is another organ of the human brain. It, along with the rest of the nervous system is often compared with computers by man. Of course, teams are built by humans and operate in accordance with step by step instructions predetermined by human programmers. However, many people believe that intelligence was not responsible for "wiring" and "programming" of the human brain.

Although extremely fast computers handle only One Piece of information at once, while the human nervous system processes millions of pieces of information simultaneously. For example, during a walk in spring, you can enjoy the beautiful scenery, hear the birds singing and smell the flowers. All of these pleasurable sensations are transmitted simultaneously to the brain. At the same time, a series of information flow from the direction of the recipients of its members, informing the brain of the moment by moment each leg position and status of each muscle. The obstacles in the path ahead are perceived by the eye. Based on this information, your brain makes sure that every step is taken without problems.

Meanwhile, the lower regions of the brain regulate heartbeat, breathing and other vital functions. But your brain handles much more. When walking, you can singing, talking, comparing present and past scenes scenes, or make plans for the future.

"The brain" concludes the book Body "is much more a computer. No computer can decide that is boring or losing their talents and must embark on a new way of life. The computer can not drastically alter its own program before establishing a new direction, a person with a brain must reschedule it. … A team can not relax or sleep, or laughs. It can not be inspired or creative. You can not experience consciousness or sense of perception. You can not fall in love. "

The most wonderful of all brain

Animals such as elephants and some large sea creatures have larger brains than a human, but in proportion to body size, the human brain is the largest of all. "The gorilla," said Richard Thompson in his book The Brain "is physically larger than a human being, however, has a brain only quarter the size of a human being. "

The number of different pathways between neurons (nerve cells) in the human brain is astronomical. This is because neurons are so many interconnections, a neuron can connect up with over a hundred thousand others. "The number of possible connections within our brain Modern is as good as the infinite, "says Anthony Smith in his book The Mind. is greater" than the total number of atomic particles that make up the universe known, "Thompson says neuroscientist.

But there is something even more remarkable. It is the way this vast network of neurons is connected which allows beings human thinking, speaking, listening, reading and writing. And these things can be done in two or more languages. "Language is the crucial difference between humans and animals," Karl Sabbagh says in his book The Living Body. Animal communication is simple in comparison. The difference, supports evolutionary Sabbagh, "is not only an improvement in skills trivial of other animals to make noise is the fundamental property that makes humans human, and is reflected in large differences in brain structure. "

The marvelous structure of the human brain has led many to make better use of its potential to become an expert in a trade, learn to play a musical instrument, mastering another language, or the development of talents that add joy to life. "When you learn a new skill," write Drs. R. and B. Bruun, in his book of the human body "You are training your brain to connect a new way. … The more you use your brain, become more efficient."

Made by whom?

Could something as highly organized and orderly as the hand, eye and brain have emerged by chance? If the man credited with the invention of tools, computers and films, surely someone must be an honor for making the most versatile hand, eye and brain. "Oh Lord," Bible, the psalmist says, "I praise you because in a way that inspires awe am wonderfully made. Your works are wonderful, like my soul is well aware." Psalm 139:1, 14.

Many wonderful features of the human body take place without our conscious effort. future of this blog post will discuss some of these mechanisms incredible and whether aging, disease and death can be conquered, so we can enjoy life forever!

His wonderful neurons

A neuron is a nerve cell with all its processes. Your nervous system contains many types of neurons, which total about 500 million dollars. Some are sensory receptors that send information from different parts of the body to the brain. Neurons in the highest region of the brain function as a video recorder. You can store permanently the information that comes from your eyes and ears. Years later you can "play" these images and sounds, along with thoughts and other sensations that man-made machines can record.

Human memory is still a mystery. It has something to do with the way neurons connect. "The average brain cell," explains Karl Sabbagh in his book The Living Body, "linked with about 60,000 others, and indeed some cells have links to a quarter of a million people. … The human brain can be at least 1000 times more information than in the ways of connecting your cell nerve that contained the largest encyclopedia in say 20 or 30 large volumes. "

But how to pass information from one neuron to another? The creatures with simple nervous systems have many nerve cells that are joined together. In this case, an electrical impulse passes through the bridge from one neuron to another. Crossing is called an electrical synapse. It's fast and simple.

Surprisingly, most neurons in the human body pass messages through a product chemical synapses. This slow, the most complex can be illustrated by a train comes to a river with no bridge and must be transported through. When an electrical impulse reaches a chemical synapse, it has to stop because a gap separates the two neurons. Here the signal is "transported" through the transfer of products chemicals. Why this complicated method of transmitting electro-chemical nerve impulses?

Scientists see many advantages in the chemical synapses. Ensures that messages go one way. There is also described as plastic as their function or structure can be changed easily. Here the signals can be modified. By using some chemical synapses become stronger while others disappear due to lack of use. "Learning and memory could not develop in a nervous system was only electrical synapses, "states Richard Thompson, in his book The Brain.

Science writer explains in his book Smith The Mind: "The neurons not only fire and no fire … must be able to transmit information much more subtle than yes or no.'s Not just banging hammers beside the nail, either more frequently or less. They are to complete this analogy, a carpenter's kit with screwdrivers, pliers, pliers, mallets and hammers. … Each nerve impulse is transformed into the road, and nowhere more than in the synapses. "

The chemical synapse is a bonus. It takes less space an electrical synapse, which explains why the human brain has many synapses. The journal Science gives a total of 100,000,000,000,000 of the number of stars in Hundreds of Milky Way galaxy. "We are what we are," says neuroscientist Thompson, "because our brains are basically chemical machines instead of power. "

Why so much blood the brain needs

Before diving into a pool, perhaps by immersion toes in the water. If the water is cold, small cold receptors in your skin respond quickly. In less than a second, your brain registers the temperature. The pain receptors can transmit information more quickly. Some nerve impulses reach speeds of 225 miles [360] mph performance comparable to the length of a football field in a second.

What, however, the brain functions to the intensity of a sensation? One way is by the frequency with a neuron, a little fire of a thousand or more times per second. The intense activity that takes place between neurons in the brain would be impossible if not for the work pumps and power.

Each time a neuron, the atoms with an electrical charge in droves to the cell. If sodium ions, as they are called, are allowed to accumulate, the neuron will gradually lose their ability to fire. How do you solve the problem? "Each neuron," says science writer Anthony Smith in his book The Mind ", contains about one million pumps of each is a slight bump in the cell membrane and the pump can change the sodium ions around 200 by 130 potassium ions per second. "While the rest of the neurons, the pumps keep working. Why? To counteract the effect of sodium ions to escape into the cell and potassium ions to leak.

The activity of the pump requires a constant supply of energy. Power comes from small mitochondria, or "powers", scattered inside each cell. To produce energy, each energy center needs oxygen and glucose supplied by blood. No wonder that the brain needs so much blood. "Although it constitutes only 2 percent of total body weight," says Richard Thompson in his book brain that "receive 16 percent of the supply of blood … the brain tissue receives 10 times the amount of blood the muscle tissue."

The next Once you feel the temperature of the water, be grateful for the billions of pumps and power stations in the brain. And remember that all this activity is possible due to oxygen and carried by your blood glucose.

The human brain processes millions of bits of information simultaneously. As you move, sensory receptors in the extremities that tell your brain the moment by moment each arm position and status of each muscle

The brain is much more complex and versatile than a computer

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