Question

In thinking about your reading and the short video below, please summarize in your own words the structure of neurons and how they work in the brain.

Video:http://www.youtube.com/watch?v=FR4S1BqdFG4

Please answer in 250 words or less. NO Copy pasted answers.

Answer 1

A typical neuron cell has

Nerve cell body , dendrites , axon and synaptic knob .Cell body shows nissl granules and neurofibrille which are seen after staning and fixation . Dendrites also have granules and neurofibrille it also has mitochondria .Axon is long axis cylindrical it is also known as nerve fibre . The cytoplasm of axon is called axoplasm and cell membrane is called as axolemma .synaptic knob is the end bulbular part of axon contains synaptic vesicles .The main function of neuron is transferring of signal .Neuron are electrically excitable .The electric impulse start from dendrites get processed in cell body and then move to the axon . After reaching the synaptic knob process become complex . The synaptic vesical contain neurotransmitters . The synaptic vesicals fuse with the membrane and release neurotransmitters in the synaptic cleft . Which combine with the receptors present on the post axon and the single is transfered to the next neuron in this way neuron works in our brain