The synaptic cleft (space between another cell and terminal boutons) has a thickness of about 20nm.Īxons do not have Nissl's granules, but neurofibrils are present. The junction between dendrites that synapse on other dendrites is known as dendrodendritic. They also have channels like 'Ca2+ channels' in their membrane. The synaptic knobs of the axons hold neurotransmitter that contains numerous vesicles.
The junction between dendrites that synapse on axons is called axodendritic. These synapses receive information from an outer environment or other cells, so dendrites become postsynaptic.Īxons are presynaptic because at the end they have terminal boutons or synaptic knobs where synapse is located. There are numerous spines on dendrites that provide the surface for other nerve cells to synapse on or to form a neuronal junction (the platform of transmission of an electric nerve between two neurons).Ģ. They have all over branches, like the branches of a tree.ĭendrites have their origin from the nerve cell.Īxon originates from the axon hillock, which is the conical projection.ġ. There is only one axon per neuron or nerve cell. There are many dendrites in a nerve cell. Content: Dendrite Vs Axonĭendrite is an expansion of a nerve cell, and these are short branched development, numerously present in a cell.Īxon is the projection in the long slender form of a neuron or nerve cell that are single per cell. In this article, we will be going through the difference between the dendrites and axons and also going through their description. Likewise, a tree, a neuron or nerve cell has three main parts: an axon, dendrites and a cell body or soma, which can be referred as roots, branches and trunk of a tree. In short, they relay and transforms the electrical signals at every action done by our body.Ībove that, nerve cells are responsible for our thought process, so they define or represents our way of thinking, that how we react and take actions in each and every step. These cells are specialized in sending and receiving the motor commands and sensory inputs, respectively to and from the outer environment. Neurons or nerve cells or neurones are the most basic and essential part of the nervous system and brain. The role of the axon is to send messages or any information or electrochemical impulses to the external environment or other neurons. Secondly, dendrite receives messages or information or electrochemical impulses from the external environment or other neurons, so they work as the input for the neuron. Axon refers to the ‘ axis‘ in Greek, so axon is the long slender like protrusion of the neuron or nerve cell. Dendrite refers to the ‘ Trees‘ in Greek, so these are the branched small extension of the nerve cell.
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