Relate neurons with neuroglia.

What is neuroglia?

What is neurone? Describe the structure of neurone with diagram.[2+3]

The outer covering of non- myelinated neurons in brain is

Distinguish between : (a) afferent neurons and efferent neurons (b) impulse conduction in an myelinated nerve fibre and unmyelinated nerve fibre (c ) aqueous humour and vitreous humor (d) blind spot and yellow spot (f) cranial nerves and spinal nerves .

A polarized neuron is said to be in

Assertion (A): Chemical messengers are chemicals that enable communication of message between two neurons or between neurons and muscles. Reason (R) : Chemicals enter the cell through receptor.

Name the neurone which is responsible for one way impulse conduction.

Once a synaptic junction between neurons has allowed transmission of a nerve impulse, it is made ready to transmit next impulse by the action of

The charge on the oUter side of the neuron is

Give a neat diagram of a reflex arc and label the following structures: receptor , effector, motor neuron, sensory neuron.