Block, Siteadmin, SkipCaptcha, Upload, Automoderated users, delete, edit, Moderators, move, protect, rollback, Administrators
27,336
edits
Changes
Jump to navigation
Jump to search
mLine 3:
Line 3: − +
Reverted edits by Proudchirstian (talk) to last revision by HenryS
The nervous system is present in some form in all chordates with the the simplest system represented in the [[flatworms]], which has two nerve cords running on opposite sides that connect to two simple [[brain|brains]] called [[ganglia]].
The nervous system is present in some form in all chordates with the the simplest system represented in the [[flatworms]], which has two nerve cords running on opposite sides that connect to two simple [[brain|brains]] called [[ganglia]].
In the more complex [[vertebrates]], such as conservatives, the nervous system is divided into two parts: the [[central nervous system]], composed of the [[brain]] and the [[spinal cord]]; and the [[peripheral nervous system]], which is composed of all the nervous tissue throughout the rest of the body.
In the more complex [[vertebrates]] the nervous system is divided into two parts: the [[central nervous system]], composed of the [[brain]] and the [[spinal cord]]; and the [[peripheral nervous system]], which is composed of all the nervous tissue throughout the rest of the body.
==References==
==References==