![]() To aptly define dendrite, we have to understand its structure first. Now let us again dovetail into the dendrite definition and other details. Thus, we can discuss the structure of a neuron as having axons and dendrites, cell bodies, and synapses. Lastly, we have the synapse, the chemical junction between the terminal of one neuron and the dendrite of another neuron. Thirdly, we have the axon, a tube-like structure that carries electrical impulses from the cell body to the axon terminals and ultimately passes to another neuron. A neuron's cell body comprises the Golgi body, endoplasmic reticulum, mitochondria, and other components. After that, we have the cell body, which is, basically, the nucleus of the neuron. To explain the structure of neuron, we have to keep in mind that all neurons have three sections – dendrites, cell body, and axon. Dendrites are found in the edge of the neuron, and they receive messages from other neurons. Secondly, we have the motor neurons that transmit information from the brain to the muscles. Firstly, we have the sensory neurons that carry information from the sensory receptors present all over the body to the brain. There exist several types of neurons that galvanize the transmission of information. They receive and transmit electrochemical signals to various parts of the body. To begin with, neurons are the building blocks of the human nervous system. Structure of a Neuron – A Brief Explanation Before getting into the nitty-gritty of dendrites meaning, let us attempt to explain the structure of neuron. Thus, the dendrites meaning is extracted from the fact that they receive signals from neurons and contain specialized proteins that accept, process, and transfer the signals to the cell body. In such a context, dendrites come into the picture as they receive the electrochemical signals from which they travel to the cell body. It is noteworthy to remember that the transfer of data from one neuron to another happens through chemical signals and electric impulses. In other words, the extensive appendages of nerve cells are termed dendrites. The post-synaptic cell will only send the message along if it gets enough excitatory input to depolarize across the threshold, and open the voltage-gated ion channels in its axon.We can understand dendrites as projections of a neuron or a nerve cell that receive signals of information from other neurons. There might even be competition among the neurons, with a single post-synaptic neuron receiving glutamate from one pre-synaptic neuron and GABA from its neighbor. This is why the brain uses neuron networks to send many signals to a single cell, or why a neuron may have to fire a couple times before it can pass the message along. Most of the time, all the vesicles released from an action potential aren’t enough to trigger an action potential in the following cell. However, a single vesicle of neurotransmitter isn’t enough to depolarize the cell body. If the neurotransmitter is inhibitory, it will hyperpolarize the cell body. If the neurotransmitter is excitatory, the influx of positive ions will depolarize (bring closer to zero) the cell body. Each vesicle packet released from the pre-synaptic neuron will contain a set amount of neurotransmitters, which will then bind to some of the receptors on the post-synaptic cell.
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