What is the differences between the nervous tissue and nervous system?
Nervous tissue is made up of different cells working together to
perform a given function -- in this case, to carry messages from
one part of the body to another. Different nervous tissues working
together make up nervous system organs, such as nerves, the spinal
cord, or the brain. These organs work together in the nervous
system, a collection of organs performing a body function. So, in
sum, the difference between nervous tissue and the nervous system
is one of size and scope: nervous tissue makes up nervous organs,
which make up the nervous system.