![]() The central nervous system, which comprises the brain and spinal cord, and the peripheral nervous system, which consists of sensory and motor nerve cells all contain these information processing neurons. This will then trigger an electrical impulse in the adjacent cell. These neurotransmitters diffuse across the synaptic gap (the gap between the pre and post-synaptic neurons) and bind to specialised receptor sites on the post-synaptic neuron. These chemicals are called neurotransmitters.ĭuring synaptic transmission, the action potential (an electrical impulse) triggers the synaptic vesicles of the pre-synaptic neuron to release neurotransmitters (a chemical message). This is done using chemicals which diffuse across the gap between the two neurons. The electrical signal needs to cross the synaptic gap to continue on its journey to, or from, the CNS. The electrical signals transmitted by neurons are called action potentials. The function of a neuron is to transmit nerve impulses along the length of an individual neuron and across the synapse into the next neuron. There is a very small gap between neurons called a synapse. Neurons lie adjacent to each other but are not connected. These cells develop around fully around the time of birth but unlike other cells, cannot reproduce or regenerate once they die. Neurons do not touch each other, but where one neuron comes close to another neuron, a synapse is formed between the two.Īccording to new research, the human brain contains around 86 billons neurons (Herculano-Houzel, 2009). Neurons, also known as nerve cells, are essentially the cells that make up the brain and the nervous system. Neurons are the information processing units of the brain which have a responsibility for sending, receiving, and transmitting electrochemical signals throughout the body. An Easy Guide to Neuron Anatomy with Diagramsīy Olivia Guy-Evans, updated August 09, 2022 ![]()
0 Comments
Leave a Reply.AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |