Posture and balance of the body is controlled by

The gap between two neurons is called a

$(a)$ Name the part of the brain which controls:
$(i)$ voluntary actions,
$(ii)$ involuntary actions.
$(b)$ What is the significance of the peripheral nervous system? Name the components of this nervous system and distinguish between the origin of the two.

Define 'nerve impulse'. Which structure in a neuron helps to conduct a nerve impulse:
$(i)$ towards the cell body?
$(ii)$ away from the cell body?

What does the central nervous system in humans consist of?

$(i)$ Differentiate between sensory neurons and motor neurons.
$(ii)$ How is the brain protected in our body?
$(iii)$ Name the part of the brain responsible for the precision of voluntary actions and maintaining body posture and balance of the body.