The abdomen is an important region of a human body it contains many of the vital organs of the body, so if there is discomfort in this region then the cause can be linked to many organs so first a medical/dental student has to know the regions of the abdomen to diagnose the present cause [...]

Here i have described about the cranial nerves their function and their supply to respective structures.
1. Olfactory Nerve: It is a type of sensory nerve,

Supply: It supplies to the Olfactory Epithelium(cells)
Function: Perception of smell from the nasal cavity.
2. Optic Nerve: It is a type of sensory nerve,
Supply: Retina (ganglion cells)
Function: Vision of retina.
3. Oculomotor Nerve: [...]

Sensory neurons are the nerves which transmit the external stimulus from the external structures to the brain as chemical impulses, which are the senses like touch, hearing, taste, vision . . etc.
According to wikipedia:
sensory neurons are neurons that are activated by sensory input (vision, touch, hearing, etc.), and send projections into the central nervous system [...]

Motor Neurons: These are the nerve cells which transmitt information from the nerve ganglion to the muscle fibers through the synapse (or) the neuromuscular junction.
They motor neurons transmit impulses away from brain or spinal cord toward or to muscles or glands with the help of neurotransmitters.
Function: Motor neurons control the actions of the skeletal muscles, [...]

Motor nerves: These are the nerves which are supplied from the the brain to the muscles and the glands to perform a function, they are used in contracting and relaxing the muscles to perform certain specified functions.
These nerves are made up of many small neurons which are called as motor neurons.
The Motor nerves transmit information [...]