Function: controls the body's many functions
The central nervous system (CNS) consists of the brain & spinal cord. The peripheral nervous system (PNS) is also connected to the CNS in a way, but further extends the signals / messages throughout the rest of the body.
Click ABOVE to Watch a Video About the Brain!
~ By the time of the Cambrian explosion (more than 500 million years ago), systems of neurons that allowed animals to sense & move rapidly had evolved in essentially to their present-day forms.
~ An fMRI can record brain activity from outside a person's skull. This, as most people can agree, is quite nice - we do not want to crack open a person's head in order to take a look inside.
We need our nervous system for everything we do. Without our nervous system, we could not do the many activites we love to do - horseback riding, feeding dogs, playing basketball, watching soccer, etc. How can we live (literally & figuratively) without our hobbies?
NERVOUS SYSTEM!
