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Neuroscience is an adverse field of living
sciences. It is a multidisciplinary field in biology.
It deals with anatomy, physiology and various
other aspects of the neurons, nerves and other

parts of the brain. No other branch of biology
intrigues the human mind more than
neuroscience. Neuroscience is an attempt of the
brain to unmap itself! The brain is the most
complicated organ in the human body.

The brain has evolved through multiple stages of evolution to reach its present stage. This
evolution is represented in the modern human brain itself. The innermost layer and the
oldest layer is THE REPTILIAN BRAIN evolved when we were reptiles. This part of our
brain makes us similar to the reptiles. Next the middle layer THE MAMMALIAN BRAIN
evolved as we transformed from reptiles into mammals and now what separates us from

the reptiles and other mammals is THE CEREBRAL CORTEX. The neurons which are the
building blocks or primary cells which make up the brain
and the entire nervous system are spread all over the
body , but are highly concentrated in the brain . The
presence of neurons is unique to animals as plants do

not have them. The neurons act as “messengers''.
Neurons have special sites called synapses from which
information is transmitted to one another. They
communicate by sending neurotransmitters. The
main aim of neuroscientists is to understand this

complex network of neurons and synapses.