Reasons why the nervous system regulates human physiological activities

The nervous system is an important part of regulating our physical health. It can be said that if there is a problem with the nervous system, then the health of our body will be seriously damaged. So many people want to know specifically what are the reasons why the nervous system regulates human physiological activities? In order for you to understand as soon as possible, take a look at the answer below.

Reflex is a regular response of the body to internal and external environmental stimuli with the participation of the central nervous system. The structural basis of reflex activity is the reflex arc. There are two types of reflexes in higher animals and humans: one is an innate reflex that is formed and inherited during the process of system development and is therefore born with, called an unconditioned reflex.

It is caused by direct stimulation of the receptors and is a reflex completed through various centers under the cerebral cortex. The other is conditioned reflex, which is an acquired reflex that is gradually formed on the basis of unconditioned reflex as animals adapt to environmental changes in the course of their lives. It is caused by signal stimulation and formed with the participation of the cerebral cortex. Depending on the structural basis, reflection can be divided into simple and complex. The simplest reflex is a monosynaptic reflex.

Complex reflexes are caused by widely distributed nerve centers, which rely on connecting neurons to form complex chains. Reflex is the basic way to achieve functional regulation. If any part of the reflex arc is damaged, the reflex cannot be realized. Due to the structural and functional characteristics of the synapse, the conduction of impulses in the reflex arc can only be transmitted from the receptor to the effector.

This article gives a detailed introduction to the reasons why the nervous system regulates human physiological activities. Therefore, many friends need to have a specific understanding of the above content. After understanding some of its reasons, they can better maintain their body health through the regulation of the nervous system, thereby improving the quality of life.