⚡ SET 9: Axons & Signal Transmission, 🧬 SET 10: Types of Neurons
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15 Terms
How many axons does a neuron usually have?
One
What is a collateral axon?
A rare branch of an axon
What is the presynaptic terminal?
The end of the axon that communicates with other cells
What is a synapse?
The junction between two cells
Where is the trigger zone?
The start of the axon where action potentials begin
What is an action potential?
An electrical signal that travels along the neuron
What are nerve tracts?
Bundles of axons in the CNS
What are nerves?
Bundles of axons in the PNS
What are the three types of neurons?
Multipolar, bipolar, and unipolar
What are multipolar neurons?
Neurons with many dendrites and one axon
What type of neurons are most common?
Multipolar neurons
What are bipolar neurons?
Neurons with one dendrite and one axon
Where are bipolar neurons found?
Sensory organs
What are unipolar neurons?
Neurons with a single extension
What type of neurons are usually sensory?
Unipolar neurons
