The nervous system coordinates the activity of cells, tissues and organs in our body. According to advanced neurology, this complex is one of the most important ones that contributes to a perfect organism operating. It regulates the functions of the body and its interaction with the environment, providing opportunities for the implementation of mental processes that underlie the mechanisms of language and thinking, memorization and learning.
What is the nervous system intended for?
It is a complex of highly specialized cells that transmit impulses from one part of the body to another. As a result, the body is able to respond as a whole unit to changes in external or internal environmental factors. The aim of advanced neurology is to conduct regular check and control the state of the patient’s nervous system.
The spinal cord contains the centers of some simple reflexes, for example, those that provide movement of the diaphragm, respiratory muscles. Besides, under the control of the brain, it regulates the work of internal organs (heart, kidneys, digestive organs).
The role of neurons in human organism
The main structural and functional element of the nervous system are nerve cells – neurons.
There are some interesting fact about neurons from neurology in Queens:
- there are more than 100… billion nerve cells in the nervous system;
- nerve cells generate about a thousand impulses per second;
- the brain consumes about 10 watts of energy (equivalent to the power of a night lamp);
- in 1 minute 740-750 ml of blood flows through the brain.
Nerve cells are made up of the body, processes and nerve endings. From other types of specialized cells, neurons are distinguished by the presence of several processes that provide for the conduction of a nerve impulse through the body. According to the top neurologist NYC, nerve cells differ in structure, but all of their types are united by the main features:
- the ability to perceive irritation;
- come to a state of excitement;
- generate an impulse and transmit it.
Neurology Queens NY: classification of nerve cells
Depending on the function, nerve endings are divided into:
Sensory neurons respond to the effects of the external or internal environment and transmit impulses to the central parts of the nervous system. Such neurons constantly measure the temperature, pressure, composition and concentration of the components of the medium and other indicators. If these indicators differ from standard ones, sensory neurons send impulses to the appropriate part of the nervous system, which is always a signal for neurologist in Queens.
Intermediate neurons transmit this impulse from one cell to another. Through executive neurons, the nervous system stimulates the cells of the working organs to operate. Top neurologist NYC also notes that the results of this process may be the following:
- corresponding decrease or increase in the production of biologically active substances by cells;
- expansion or narrowing of blood vessels;
- contraction or relaxation of muscles.
The meaning of reflexes
The response of the nervous system to the influence of the external environment or to a change in the internal state of the body is based on a reflex. Thanks to the reflex, many of our actions take place automatically. Those that are carried out with the participation of the brain and are formed on the basis of our experience are called conditioned reflexes.
Neurology in Queens NY considers conditioned reflexes a significant part of human daily activities. In this case, people act according to the conditioned reflex principle when driving a car or performing various mechanical movements.