The human body is more detailed than any program or construction plan. And this little trivia on fun facts about the nervous system might help you understand it better. So without further due, let’s look at the introduction and start our journey on gaining new pieces of knowledge.
We interact using phones and letters. But, what about our bodies? How do they communicate with themselves? How does the message from the head reach the toe?
The explanation for this would be the Nervous System.
It not only acts as the mediator between other systems but also helps in interpreting emotions and situations. So now you know who it is that talks to you when you think you are thinking.
The Neurons- their basic cell unit- is crowded in every part of our body. Therefore information from all corners is available at all times. The Brain and Spinal Cord are also part of the Nervous System.
All activities, from breathing to walking, are the results of the nervous system’s hard work.
Along with helping in coordinating complicated metabolic processes, it also accommodates numerous fun facts that might fetch you long-awaited answers to some of your questions. For example, why do we yawn when we see someone else yawn?
But, before we dive into the Fun facts about the nervous system, let’s look at what our nervous system has to offer to the human body in the first place.
We all know that the human nervous system consists of two categories- the Central Nervous System CNS and the Peripheral Nervous System PNS.
The Brain and the Spinal Cord are the only members of the Central Nervous System CNS.
Wherein the Peripheral Nervous System PNS includes all the other nerves of the body.
The Spinal Cord is like a central highway that connects the routes to all locations. Along with it being a junction for all nerve cells to meet, it is also a two-way pathway where messages are transmitted to and fro from the brain. You can call it the human traffic jam that moves pretty smoothly.
Now that we have a gist of it. Let us jump to the fun facts about the nervous system.
10 Fun Facts about the Nervous System
Fact 1: There are more nerve cells in a human body than the number of stars in the Milky Way Galaxy.
As children, while practicing uncountable nouns, our teachers always gave the example of the number of stars in the Milky-Way-Galaxy.
But did you know that the number of neurons in a single human is enough to outnumber the stars of our very own Galaxy? Probably not.
We have billions of neurons embedded in every part of our body.
These fun facts about the nervous system show us the characteristic of quantity through the reference of stars. It also justifies how the Nervous System is able to stay in contact with each tissue in our body.
Fact 2: Messages travel at the speed of 156-268 miles per hour in neurons
The Nervous System is like a chemical factory. The nerve cells here communicate using their secret language of chemicals and electrical impulses. To understand this, let’s look at the three different parts of a neuron- Dendrits, Axon and the nerve endings.
The branching tree-like dendrites receive information from the sensory cells and convert it into an electrical impulse.
This electrical impulse travels through the long fiber-axon to the nerve endings.
Here the neurotransmitters are present. These neurotransmitters release chemicals as a reaction to the electrical charge.
The chemical signals then reach the dendrites of the neighboring neuron through the synapse, i.e. the empty gap between the two neurons.
This chain of transmitting signals and carrying messages occurs at a speed of- 156 to 268 miles per hour.
Therefore, competing head to head with the speed of a race car on a racecourse.
These fun facts about the nervous system show us that both accuracy and speed- are followed by moving in one direction.
Fact 3: Neurons produce enough energy to light an LED bulb
Nerve cells work hard day in and day out, tirelessly. The endless energy generated to transmit messages is surprisingly enough to torch a 3.3 Volt LED bulb.
If the Neurons really get down to burning bulbs at low voltage, they can have their very own disco night. These fun facts about the nervous system prove that electricity (sodium ions)runs inside us, and hence we are good conductors.
Fact 4: The Brain shrinks as we lose neurons with age
In a fetus, neurons grow at a speed of 15 million per hour, and the size of the brain triples by the time we turn a year old. However, the neurons eventually lose their ability to repair and divide. Therefore, every damage is permanent. The glial cells are hence present to protect and support cells.
These fun facts about the nervous system occur because of the reduction in blood flow to the brain as we age. Interestingly neurons lose weight by a gram with every coming birthday.
Fact 5: Neurons run laundry while we sleep
The Nervous System offers a housekeeping service.
All the cleansing and excretion of toxins produced during the day requires a guide to communicate and direct. The Nervous System here plays the role of a director.
In fact, our body has a separate set of nerves to control bowel movements.
So next time, remember to thank your neurons for giving you a fresh start and good bowels in the morning.
Fact 6:The Composition of the brain differs from a male to a female
The cerebrum is a part of the human brain. Its outer layer is made out of gray matter, while the rest- is made of white matter. The proportion, however, differs between males and females.
The gray matter is more in males, while the white is more in females. Does it matter? Yes, it does. It is the reason why the two genders have such different perspectives.
Along with the change in grey-white matter ratio between the two sex, the size of the hippocampus and amygdala is also different. However, these fun facts do not mean any gender is superior to the other.
Fact 7: The Left and right side of the brain coordinates the opposite side of the body
The brain’s structure- is divided into two parts. The left and the right side have their respective roles to play.
The left side is responsible for analysis and logical reasoning, while the right side of the brain deals with the artistic and creative aspects of thinking. Now you know who is responsible for being bad at math or good at art.
Did you know that your right side of the body is coordinated- by the left half of the brain and vice versa?
It’s true. The two neuron fibres originating from respective sides cross over to the opposite direction after passing through the medulla. For example, if you are writing with your right hand, then your left side of the brain is doing its work.
These fun facts about the nervous system tell us that the brain is the computer of the human body.
Fact 8: Being curious increases the number of connections between the brain cells
Humans have always been curious about things. For instance, some wonder- why is the sky is so blue while some want to know what’s happening inside the neighbour’s door.
This curiosity is something that creates an intense desire to think and understand. It puts the brain to constantly work which, improves the neuronal connections between the nerve cells. Therefore, resulting in more brain cells connecting in the human brain.
These fun facts about the nervous system help us understand the evolution of the human brain over the years. It is probably our curiosity that has helped us evolve from apes to humans.
Fact 9: The Nervous System is responsible for contagious mirror movements.
It’s rather strange to find ourselves yawning when we see another person doing it. And sometimes, we also observe ourselves touching our faces when someone else does it. Why do you think we become such copycats?
The answer to this behavior of contagious movements is the mirror neurons present in the brain.
If you look at this tendency of copying from a psychological aspect, we can say that it is a kind of adaptation. Here our body creates a matching response similar to what the optic nerves transmit for the sake of social interaction.
So you see, these fun facts about the nervous system show us that humans are creatures who urge societal acceptance.
Fact 10: Reflex Action: Fastest signal transmission
It would be incomplete to end this list of- Top 10 Fun facts about the nervous system without reflex action. So let’s dive right into it.
Whenever we touch something hot or see something bright, we unconsciously remove our hands or close our eyes tight. These responses happen within seconds, even before we realize it. It is because our body reacts immediately to danger.
The long process of transmitting messages- is avoided. A shortcut- is sought.
Herein the response is directly sent by the spinal cord to the motor neurons before reaching the brain through the Reflex Arc. This method allows quicker reaction and light damage.
These fun facts about the nervous system indicate the survival instincts of the human body.
Along with fun facts about the nervous system, here are some health advice:
- For bodily functions to work efficiently, the body’s communication system must run perfectly.
- A good posture is necessary as back pain can cause severe nerve damage.
- Exercising is required so that the longest nerve- the sciatic nerve can function properly.
- The brain controls different functions. Hence, mental peace is essential.
- Meditating will help you sharpen your mind and help in the proper functioning of all body parts.
The Nervous system consumes 20% of the body’s energy. A balanced diet filled with nutrients will improve overall health and energy level.
Any information found on the site does not constitute legal or medical advice. Should you face health issues, please visit your doctor to get yourself diagnosed. Icy Health offers expert opinions and advice for informational purposes only. This is not a substitute for professional medical advice.