The nervous system is perhaps the most complex system in the human body. It is made up of a set of nerves and cells that transmit messages to and from the brain, the spinal cord and other parts of the body.
The structure, in a more specific way, is like this:
- Central nervous system: brain (brain, cerebellum and medulla oblongata) and spinal cord.
- Peripheral nervous system : somatic nervous system (sensory, motor and mixed nerves) and autonomic nervous system (sympathetic and parasympathetic).
The neurons are responsible for transmitting sensory information to our entire body. This unit receives and sends stimuli to any part of the body to perform actions that are interpreted as involuntary responses from our body, such as reflexes, sensations and others. Neurons are in turn composed of dendrites (receives impulse) and axon (send the message).
Being such a complex system, listing the functions it carries out in the body would be quite extensive, but below you will see some of the tasks it is responsible for:
- Controls brain growth and development
- Develops and brings the senses to function
- It is responsible for our having a perception of what surrounds us.
- It is linked to our thoughts and emotions
- Learning and memory
- Movement, balance and coordination
- Dream (sleep)
- Healing and rehabilitation
- Stress, responses and their consequences
- Breathing and heartbeat
- Body temperature
- Hunger, thirst and digestion
- Puberty, health, fertility
This device is the fundamental basis for the correct or adequate functioning of our body. Without this sending and receiving signals or sensory impulses , our body would not be too different from that of plants if we talk about functions.
The nerves are responsible for allowing us to feel, move and other vital functions. Thanks to this we can remember events, people and things; We can see, hear, speak and other actions that seem simple, because we do them daily and even involuntarily, but behind that there are thousands of chemical processes that happen in an instant of time and are the result of the constant work of the body .
Examples of diseases of the nervous system
These are some diseases or disorders, which can be suffered due to some failure in the nervous system:
- Arteriovenous malformations and brain aneurysms.
- Tumors, benign and malignant.
- Parkinson’s disease
- Pituitary disorders
- Head injuries, such as brain trauma.
- Movement disorders
- Multiple sclerosis
- Ophthalmic neuropathy (damage to the optic nerve or its connections to the brain causing blindness).
- Peripheral neuropathies.
- Spinal disorders
- Meningitis and other infections