A Medical Guide to the Nervous System
The human body is a unique and fascinating piece of machinery that comes equipped with different systems of operation. Each system within the body has a particular function, which makes the human body well organized and structured. The largest system of the body is the nervous system. The nervous system has two main parts, the central and peripheral nervous systems. Keeping your nervous system functioning well, individuals can take care of their nervous system by eating the right kinds of foods, getting plenty of exercise and staying active. Keeping a cheerful state of mind is also good for the nervous system.
About the Nervous System
The inside of your body looks very much like a roadmap with tiny avenues of nerves, fibers and cells uniting and working together as they operate in the nervous system. Inside the cells, also known as the nerve cells, each cell consists of a synaptic terminal, a sac containing neurotransmitter chemicals, which sends impulses from the nerves to muscle cells. This movement or impulse is caused by an electrical charge that takes place within the neuron, helping it get the message to its final destination, the muscles. With the nervous system, there are over thousands and thousands of neurons joining together to make nerves. The importance of the nervous system is the fact that it is responsible for all the processing and sending of information throughout the human body.
What Makes Up the Central Nervous System?
The central nervous system is a part of the nervous system involving the brain and spinal cord. You should already know that the brain lies within the skull. It also sends and receives messages by way of “the nerves.” Its function or responsibility is to control body functions. So the brain is the master of the central nervous system, it is more powerful and complex because it helps you with your five senses, sending messages to the different organs that travel by way of nerve fibers that travel to nerve cells located within the brain. Your brain is busy sending messages, regardless if you are awake or asleep. These messages travel through the cranial nerves, which affect the ears, eyes, nose and throat. It even sends messages to the face and scalp.
While your brain is taking one course of action in sending vital messages, the spinal cord has its main function as well. It is responsible for sending messages to and from body parts such as the arms, legs and the trunk of your body.
When it comes to brain action, it has over one billion nerve cells. Another brain fact, when it comes to solving problems, it is the left side of the brain that works best in problem solving, such as math problems. However, it is the right side of the brain that is used in being creative and artistic. Now this may sound a bit topsy-turvy, but the fact is that it is the left side of the brain that controls the right side of the human body, while the right side of the brain controls and manages the left side.
The Peripheral Nervous System
Since the brain is the master of the nervous system, the peripheral nervous system is the general, for it also sends messages to the brain, but it also carries out orders sent from the brain, sort of like the brain’s right hand man. The peripheral nervous system has two important parts that help maintain its system; the somatic and autonomic systems are components of the peripheral nervous system. The somatic system is responsible for sending sensory messages to the central nervous system. The autonomic system is responsible for sending automatic information that works with such things as human beings breathing and digesting their food intake. It is an automatic reflex that’s in operation 24/7 so that you, the individual will not have to think about or remember to do it. Imagine having to remind yourself to breathe every second of the day and night, or think about it, what would happen if you had to remind your stomach to digest your food? What would happen if you forgot or just didn’t have the time to think about it?
For more information on the nervous system, please see the following links below.
- Nervous System Overview
- Brain and the Nervous System
- Parts of the Nervous System
- The Peripheral Nervous System
- About the Spinal Cord and Brain
- About the Central Nervous System
- The Organization of the Peripheral Nervous System
- Two Nervous Systems working Hand in Hand
- The Nervous System and what Doctor Kate Says
- The Human Body Systems for Kids