Multipolar neurons: many extensions from the cell body
unipolar neurons: have a short, single process leaving the cell body
Processes: fibers that extend from the cell body
- extreme longevity
- conducts messages
- amitotic
- high metabolic rate
Structure of a Motor & Sensory Neuron
Bipolar neurons: one axon & one dendrite; rare in adults; special sense organs
Structural Classification
Structural Classification
Carry impulses from the central nervous system to the effector
Carry impulses from the sensory receptors to the central nervous system
Motor Neurons
Sensory Neurons
cell bodies: nucleus and metabolic center of the cell
All neurons have:
A neuron is a specialized cell that transmits nerve impulses
Characteristics:
What is a neuron?
