An electrical impulse cannot directly cross the gap so a different mechanism has to be used. Between impulses the transmitter molecules are rapidly removed from the synaptic cleft to prevent ...

Information from receptors passes along neurones, as electrical impulses to co-ordinators such as the central nervous system or CNS. The CNS is the brain and spinal cord. Muscles contracting or ...

Making sense of this information, scientists say, requires a sophisticated filtering system that focuses ... Since electrical synapses are found throughout the nervous systems of many animals ...