structure and functioning of neuron if
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video we are going to learn about the
neuron first let us see the different
parts of a neuron here we have a diagram
of neuron let us identify the different
parts of the neuron by labeling them
this is cell body
these are dendrites and this is the axon
and these are the nerve terminals are
nerve endings here this is the cell body
of the neuron we can observe a nucleus
in the cell body so cell body has a
nucleus and we can also observe some
branches that are arising from the cell
body these branch like structures
arising from the cell body are called
dendrites here we find a long fiber
extending from the cell body this long
fiber is called axon at the end of the
axon we will find some small branches
called as nerve endings so the tips of
the axon are called nerve endings or
nerve terminals now let's see how the
nerve cell functions what is its role
what is its function how do these nerve
cells help us nerve cells help us in
transmission of information from one
part to another part of our body let us
understand this with the help of an
example
we see an object with our eyes the
visual information of that object is to
be carried to our brain to recognize
that object then how the information is
carried from eye to brain that is by
nerve cells the dendrites of the neuron
receive the information the axon passes
the information to the next neuron then
the dendrites of a neuron
by receiving the information they start a
chemical reaction that generates an
electric impulse this electric impulse
travels from the dendrite to the cell
body and then along the axon and finally
reaches the nerve endings the nerve
endings are not directly connected to
the other neuron because there is some
gap between one nerve cell and the other
nerve cell so this gap this Junction is
called the synapse here is a question if
the neurons are not connected to one
another then how the electrical impulses
pass from one neuron to another neuron
let's see at the ending of the axon that
is at the site of nerve endings the
electrical impulses triggers the release
of some chemicals that means the
electric impulse is converted to some
chemical these chemicals they cross the
gap they reach the dendrite of next
neuron so there they create similar
electrical impulse when these chemicals
reach the generate of next neuron there
a similar electric impulse is created
this electrical impulse pass from the
dendrite to the axon again it traveled
throughout the axon finally reaches the
nerve endings so finally at the end the
neuron is connected to the target cells
what are the target cells it can be
either muscles or glands so at the end
the neuron is connected to the target
cell by a synapse we know what is the
synapse synapse is a gap between the
neuron and the next neuron this is how
generally nerve impulses travel in our
body thanks for watching if you liked
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