![]() ![]() In neurotransmission, neurotransmitters, the chemical messengers that relay information from neuron to neuron, when released from the terminal buttons of one neuron into the synapse, interact chemically with the cell membrane of the next neuron (post synaptic membrane) sending either excitatory or inhibitory message, depending on the characteristics of the receptor molecule located in the post synaptic membrane. The process of neuron to neuron chemical transmission is termed synaptic transmission or neurotransmission. Within the neuron, the activated impulse, the action potential travels down the axon and causes neurotransmitters to be released into a synapse. Messages are transmitted electrically within a neuron and chemically between neurons. The four parts of a neuron-the dendrite, the soma, the axon and the terminal buttons - are specially structured to interactively bring about the transmission of received and processed information to other parts of the body in a predictable and consistent pattern and direction: from dendrite Soma axon terminal buttons. The different neurons work together in neural transmission. The three major types of neuron,- the sensory neuron, the interneurons and the motor neuron - differ in shape and size depending on whether they receive information from a few sources or from many, and the distance over which they carry the impulses. The neuron is activated when it is stimulated by factors such as heat, sound, light, pressure and information from other cells and it is said to fire when it sends out electrical impulse in response to the stimulation. ![]() It is a functional unit of the nervous system. A neuron is a cell in the nervous system of a mammal specialized to receive, process, and/or transmit information to other cells. Neural transmission is a process of activation and firing of a neuron. ![]()
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