Some animations will not browse very and you may have to download this file to get the best effect. Nerve tissues respond to stimuli and are composed of individual cells called neurons and their associated support cells.
Nerve cells can measure up to two meters in length and are well suited to transmitting messages.
These cells convert stimuli into electrochemical impulses and transmit the signals down their lengths. Web site explanation. The Action Potential moves down the neuron from dendrite to axon then to the end brush or presynaptic terminal. There are 3 membranes protecting the brain and spinal cord - meninges. The spaces between the membranes are filled with cerebrospinal fluid.