These following facts about the nervous system might probably make you want to know more about your body and its relation between brain and other vessels. For example, when we accidentally touch a hot object, the nerves that are connected to our skin transmit the message of pain to the brain. In response, the brain directs the muscles of the affected area to pull away from the source of pain. The whole process is executed in fractions of a second, lot lesser than the time you will take to read these two lines. To get to know more about how the process is going, here are other facts about the nervous system you may like.
Facts about the nervous system 1: Billion Nerve Cells
There are billions of nerve cells in the human body. Whether their number is actually more than the number of stars in the Milky Way galaxy is debatable, but their number is definitely more than the number of people on Earth.
Facts about the nervous system 2: 100 Billion Neurons
The human brain alone consists of about 100 billion neurons on an average. If all these neurons were to be lined up, it would form a 600-mile long line.
Facts about the nervous system 3: Human Spinal Cord
The human spinal cord, with an average length of 19 inches, consists of around 13,500,000 neurons. All the messages relayed between the brain and other parts of the body go via the spinal cord.
Facts about the nervous system 4: Speed
The nervous system is able to transmit impulses at the speed of 100 meters per second. In fact, the speed of message transmission to the brain can be as high as 180 miles per hour.
Facts about the nervous system 5: Pair of Nerves
There are 43 different pair of nerves which connect the central nervous system to every other part of our body. Of these, 12 nerve pairs are connected to the brain, while the remaining 31 are connected to the spinal cord. Of these, the cluster of nerves located at the base of the spinal cord are known to be the most sensitive.
Facts about the nervous system 6: Reflex Action
Though the brain and spinal cord work together as a unit most of the time, the spinal cord is capable of executing certain actions on its own. The reflex action triggered when we touch a hot object is one of the best examples of the same.
Facts about the nervous system 7: Brain’s Size
In newborns, the brain is known to grow three times within the span of a year. As we grow older, the brain loses a gram every year.
Facts about the nervous system 8: Brain
In humans, the right side of the brain controls the left side of the body, while the left side of the brain controls the right side.
Facts about the nervous system 9: Beneficial Function
Sodium ions and potassium are necessary for the proper functioning of the nervous system. Other than these, even Vitamin B is considered beneficial.
Facts about the nervous system 10: Nervous System
As the nervous system is one of the most important attributes of the human body, damage caused to it can lead to severe consequences at times. More importantly, the central nervous system has a limited ability of repairing itself on its own, which makes the issue all the more serious. It is because of this that the nervous system is housed in the safety of the human skeletal system.
Those following facts about the nervous system may probably expand your knowledge about how to treat your body and brain. This facts is very important for you to know since you live your life with your own body and bring. Hope you would find those nervous system facts useful and interesting.