Nervous system: the body’s internal communication system. It is comprised of many nerve cells. The nerve cells absorb information from the body’s senses of touch and taste, smell, sound, sight, and smell. Here are some amazing Facts About The Nervous System for kids!
The brain processes these sensory cues to determine what’s happening in the body and out. This lets a person make use of their body to communicate with the environment around them and regulate their body’s functions.
Our nervous system can be complex. We depend on it each day to ensure that we are well and secure. What are the reasons we should be thankful for the nervous system? Take a look at these 11 interesting facts and you’ll understand the reasons:
Facts About The Nervous System
The body is home to billions of nerve cells.
Each person’s body has millions of neuron cells (neurons). There are around 100 billion neurons in the brain and 13.5 million within the spinal cord. The neurons in the body absorb and transmit electrical as well as chemical messages (electrochemical energy) to the other neurons.
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Neurons are composed of three components
Neurons receive signals from a small antennae-like component called the dendrite. They transmit signals to other neurons via the long cable-like component known as the Axon. Axons can extend as long as a meter.
In certain neurons, axons have been covered with a thin layer myelin, a fat that serves as an insulation. It assists in transmitting impulses, or nerve signals along the axon’s length. The most important component of a neuron is known as”the cell’s body. It houses all the vital components of the cell that enable it to function correctly.
Neurons might look different than one another.
Neurons are found in a range in shapes, sizes and forms, based on their location within the body and what they’re programmed to perform. Sensory neurons have dendrites at both ends and are connected via a long axon, a cell within the middle. Motor neurons are composed of an organelle at one end, dendrites on the opposite end, and a lengthy axon that runs through the middle.
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Neurons are programmed to perform different things.
There are four kinds of neurons:
- Sensory neurons send electrical signals emanating from the outside areas of the body – -muscles, glands and the skin to the CNS.
- Motor Motor neurons send messages from the CNS to the exterior areas of the body.
- Receptors Receptor neurons detect the surroundings (light and touch, sound and chemicals) around you, and convert it into electrochemical energy which is then absorbed to sensory neurons.
- Interneurons relay messages from one neuron to the next.
There are two components of the nervous system.
The nervous system in the human body is split into two distinct parts. Their position within the body distinguishes them. They include the central nervous system (CNS) as well as the peripheral nerve system (PNS).
The CNS is situated in the skull as well as the spinal canal called the vertebral. It is comprised of nerves from the spinal cord and brain. The remaining nerves from other areas of the body are part of the PNS.
There are two kinds of nervous systems.
Everyone’s body has a central nervous system and an NS. It also has both an involuntary and voluntary nervous system. A person’s voluntary (somatic) nerve system is responsible for the things that the person is conscious of and is able to control consciously, like moving their arms, head legs, organs.
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The body’s voluntary (vegetative or automated) nervous system is responsible for controlling functions in the body that the person isn’t conscious of managing. It’s always in motion and controls the heart rate and breathing rate and metabolism and other vital body functions.
The involuntary system has been broken into three components
It is important to note that the CNS and PNS both have voluntary as well as involuntary components. These components are interconnected to the CNS. However, they are not present in the PNS, where they typically exist in different regions within the human body. The involuntary portion of the PNS comprises the parasympathetic, sympathetic, and enteric nervous systems.
The body is equipped with a nervous system that assists in making the body ready to take the next
The sympathetic nervous system informs the body that it is ready in preparation for mental and physical activities. The heart is triggered to accelerate and beat faster, and allows airways to be opened to allow for easier breathing. Additionally, it temporarily stops digestion, allowing the body to concentrate on quick actions.
There is a system of nerves to control the body’s movements when it is at rest
The parasympathetic nervous system regulates a person’s bodily functions when it rests. rest. Some of its functions include increasing digestion, boosting metabolism and aiding the body to relax.
There is a nervous system that assists in managing the bowel.
The body is equipped with its nervous system, which is responsible for controlling the colon. The enteric nervous system regulates bowel movements as a component of digestion.
The nervous system of your body can be attacked
Scientists from the Trusted Source are currently working on methods for “hacking” inside the immune system and gaining the capability of controlling brain cells through the flash of light. Cells can be programmed to respond to light by altering the genetic code.
Hacking could help scientists understand the roles of various types of neurons. They can activate multiple brain cells simultaneously and monitor their effects on the human body.