Types of neurons

Question 1

Describe a unipolar neuron

Answer 1

Have dendrites and one axon that are fused together
Dendrites function as sensory receptors

Dendrites -> Trigger zone -> Cell body (off to the side) -> Axon terminal

Question 2

Describe a bipolar neuron

Answer 2

One main dendrite and one axon
Found in retina of the eye, inner ear and olfactory area of brain

One dendrite extending singularly -> Cell body -> Axon -? Axon terminal

Question 3

Describe a multipolar neuron

Answer 3

Several dendrites and one axon
Most in brain and spinal cord are of this type
Most interneurons and motor neurons are of this shape

Dendrites -> Cell body -> Axon -> Axon terminal

Question 4

Describe a typical neuron structure

Answer 4

Dendrites (Receiving or input portion) 
Cell Body 
Axon hillock  (nerve impulse arrives)
Axon 
Synaptic end terminals (Axon terminals)
Synaptic end bulbs 
Synapse (site of communication between two neurons)
Neurotransmitter released from synaptic vesicle that excites or inhibits another neuron, muscle fibre or gland cell