Nervous System

This represents the sympathetic nervous system, which sends signals to each of the depicted targets to prepare the body to respond to threats.

Messages through the sympathetic nervous system can accelerate heart rate, widen bronchial passages, decrease large intestine motility, cause vasoconstriction (except in the cerebral and coronary arteries), increase oesophageal peristalsis, and many other changes in the body.

Nerve cells, called neurons, are the cells that constitute the nervous tissue of which the nervous system is made. They work by a mixture of chemical and electrical action, allowing the transmission of signals in our body.

 

Simple components for a complex assembly 

 

The peripheral nervous system is made of millions of nerves, called peripheral nerves, linked to each other or to muscles or to receptors throughout our body. 

You can think of it as a series of electrical wires or telephone lines connecting your brain and body, allowing them to communicate. are the cells that constitute the nervous tissue of which the nervous system is made. They work by a mixture of chemical and electrical action, allowing the transmission of signals in our body.

Simple components for a complex assembly 

The nervous system is the part of our body that helps us not only to perceive, comprehend and respond to the world around us, but also send, receive and interpret information from all parts of our body. In fact, the nervous system monitors and coordinates both voluntary actions, like walking, that we consciously decide to do and involuntary actions, like breathing and digestion, that happen without our specific decision.

The peripheral nervous system is made of millions of nerves, called peripheral nerves, linked to each other or to muscles or to receptors throughout our body. 

You can think of it as a series of electrical wires or telephone lines connecting your brain and body, allowing them to communicate. 

This represents the sympathetic nervous system, which sends signals to each of the depicted targets to prepare the body to respond to 

English: Messages through the sympathetic nervous system can accelerate heart rate, widen bronchial passages, decrease large intestine motility, cause vasoconstriction (except in the cerebral and coronary arteries), increase oesophageal peristalsis, and many other changes in the body.