What are Neurons?
Cells of the nervous system
Carries information as electrical impulses
Between neurons is the synapse
Neurons communicate through synaptic transmission at the synapse
What are the 7 Structures of the Neuron?
Dendrons
Nucleus
Soma
Axon
Myelin sheath
Axon terminal
Synapse
What are Dendrons?
Receive information from other neurons
Sends this information towards the soma
What is the Soma?
Known as the cell body
What is the Nucleus?
Contains genetic materials (DNA)
What is the Axon?
Carries electrical impulses away from the soma towards to the axon terminals and synapses
What is the Myelin Sheath?
Fatty layer that forms around the axons
Protects the axons
Allows messages to be transmitted across the nerve cells
Helps speed up the electrical impulses
What is the Synapse?
Gaps between neurons
Synaptic transmission occurs at the synapse
Enables 1 neuron to transmit a signal to another neuron
Synaptic vesicles
What is the 5 Step Process of Synaptic Transmission?
- Electrical impulse arrives at the axon terminal
- Vesicles releases the neurotransmitter into the synapse
- Neurotransmitters move across the synapse
- Neurotransmitters bind to the receptor sites on the next neuron
- The electrical impulse continues in the next neuron
