Describe the parts of the brain neuron including; the axon ; the dendrite ; what are...

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Biology

Describe the parts of the brain neuron including; theaxon ; the dendrite ; what are neurotransmitters? ;what arevesicles? ; describe the Synapse ; what is the function ofreceptors; what is the Action Potential; and explain synapticreuptake

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Neurons also called neurones or nerve cells are the fundamental units of the brain and nervous system the cells responsible for receiving sensory input from the external world for sending motor commands to our muscles and for transforming and relaying the electrical signals at every step in betweenWhile neurons have a lot in common with other types of cells theyre structurally and functionally unique Parts of a neuron Neurons vary in size shape and structure depending on their role and location However nearly all neurons have three essential parts a cell body an axon and dendrites Axon An axon is a long taillike structure which joins the cell body at a specialized junction called the axon hillock Many axons are insulated with a fatty substance called myelin Myelin helps axons to conduct an electrical signal Neurons generally have one main axon Dendrites Dendrites are fibrous roots that branch out from the cell body Like antennae dendrites receive and process signals from the axons of other neurons Neurons can have more than one set of dendrites known as dendritic trees How many they have generally depends on their roleFor instance Purkinje cells are a special type of neuron found in the cerebellum These cells have highly developed dendritic trees which allow them to receive thousands of signals Neurotransmitters Neurotransmitters are often referred to as the bodys chemical messengers They are the molecules used by the nervous system to transmit messages between neurons or from neurons to muscles Communication between two neurons happens in the synaptic cleft the small gap between the synapses of See Answer

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