A body’s nervous system is a network of specialized cells to process information, and cause reactions in parts of the body. The nervous system is composed of neurons, cells that processes and transmits the information in the form of electrochemical signals and glial cells that work together with the operation of the neuron.
In humans, the nervous system is divided into two parts, the central nervous system and the peripheral nervous system. The central nervous system is made up of the brain and spinal chord, while the peripheral nervous system consists of all the neurons in the body, except the brain and spinal chord. The nervous system is a vital component of the human body, which helps in the detection and movement. The proper functioning of the five senses – touch, sight, taste, hearing and smell, is attributed to the nervous system.
Interesting facts about the nervous system
When we accidentally touch burning coal, the nerves connect to our skin to transmit the message of pain to the brain. The brain in response ordered the muscles to pull the combustion of coal. This process runs in less than a fraction of a second, which is much less time that it would take to read these two lines. This is the speed of coordination between the brain and other parts of the body, which is facilitated by the nervous system. Below are some fascinating facts about the nervous system.
There are millions of nerve cells in the human body. This number exceeds even the number of stars in the milky way.
The human brain only consists of envelope a neurons 100 million. If all these neurons were lined up, they would form a long line of 600 miles.
In human beings, the right side of the brain controls the left side of the body, while the left side of the brain controls the right side.
The diameter of the neurons varies from 4 to 100 microns.
In a child developing in the uterus, neurons are growing at a rate of 250,000 neurons per minute.
By the time of his birth, the baby’s brain is in about 10 million neurons.
The human spinal chord consists of about of 13,500,000 neurons. The Group of nerves, nestled at the base of the spinal cord are more sensitive.
The weight of the brain in the average adult male is 1375 grams, while in females it is 1275 grams.
And as it grows the brain loses one gram every year.
At any given time, only four percent of the cells in the brain is activated, the rest are kept in reserve.
Neurons, which are the largest in the human body cells, not to undergo the process of mitosis.
The nervous system is very fast, can transmit impulses at a tremendous speed of 100 meters per second. The speed of transmission of the messages that the brain can be as high as 180 miles per hour.
Sodium and potassium ions are the components needed to ensure the proper functioning of the nervous system. It is considered beneficial for even vitamin b
There are 43 nerves in different pairs that connect the central nervous system to every part of our body. Twelve of these pairs of nerves are connected to the brain, while the remaining 31 are connected to the spinal cord.
As the nervous system is one of the most important aspects of the human body, any damage often leads to permanent damage. Very often, it warns that complications such as paralysis arise when any type of damage is caused to the head (brain) or spinal chord.