Action potential potential, such as plant cells, muscle cells, and the specialized cells of the heart (in which occurs the cardiac action potential). However, the main excitable cell is the neuron, which also has the simplest mechanism for the action potential. Neurons are electrically excitable cells composed, in general, of one or more dendrites, a single soma, a single axon and one or more axon terminals. Dendrites are cellular projections whose primary function is to receive synaptic signals. Their protrusions, known as dendritic spines, are designed to capture the neurotransmitters released by the presynaptic neuron. They have a high concentration of ligand-gated
Neurotrophic electrode by the intended listener. The standard advantages and disadvantages of invasive versus non-invasive interfaces still apply. However, for this particular application, the neurotrophic electrode has an advantage in that it has already been shown to be effective for restoring communication to disabled patients. Neurotrophic electrode The neurotrophic electrode is an intracortical device designed to read the electrical signals that the brain uses to process information. It consists of a small, hollow glass cone attached to several electrically conductive gold wires. The term "neurotrophic" means "relating to the nutrition and maintenance of nerve tissue" and the device gets its name from