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Questions and Answers
What is the main function of synaptic vesicles in the presynaptic terminal?
What is the main function of synaptic vesicles in the presynaptic terminal?
- Generate action potentials
- Store and release neurotransmitters (correct)
- Facilitate electrical conduction
- Maintain membrane potential
What is the role of the synaptic cleft in a synapse?
What is the role of the synaptic cleft in a synapse?
- Serve as a physical barrier for neurotransmitter transmission (correct)
- Initiate action potentials
- Maintain ionic balance
- Facilitate neurotransmitter synthesis
What do receptors on the postsynaptic membrane bind to?
What do receptors on the postsynaptic membrane bind to?
- Synaptic vesicles
- Neurotransmitters released by the presynaptic neuron (correct)
- Action potentials
- Electrical impulses
Which structure within the presynaptic terminal triggers the release of neurotransmitters into the synaptic cleft?
Which structure within the presynaptic terminal triggers the release of neurotransmitters into the synaptic cleft?
What is the main role of neurotransmitters in a synapse?
What is the main role of neurotransmitters in a synapse?
What is contained in the axon terminal of the presynaptic neuron?
What is contained in the axon terminal of the presynaptic neuron?
What separates the presynaptic and postsynaptic membranes?
What separates the presynaptic and postsynaptic membranes?
Where are specialized receptors located that bind to neurotransmitters?
Where are specialized receptors located that bind to neurotransmitters?
What triggers the release of neurotransmitters into the synaptic cleft?
What triggers the release of neurotransmitters into the synaptic cleft?
Study Notes
Synaptic Vesicles and Neurotransmitters
- Synaptic vesicles in the presynaptic terminal contain neurotransmitters that are released into the synaptic cleft.
Synaptic Cleft
- The synaptic cleft is the small gap between the presynaptic and postsynaptic neurons, where neurotransmitters are transmitted.
Receptors and Neurotransmitters
- Receptors on the postsynaptic membrane bind to neurotransmitters released from the presynaptic terminal.
Neurotransmitter Release
- Voltage-gated calcium channels within the presynaptic terminal trigger the release of neurotransmitters into the synaptic cleft.
Neurotransmitter Function
- The main role of neurotransmitters is to transmit signals from the presynaptic neuron to the postsynaptic neuron.
Axon Terminal
- The axon terminal of the presynaptic neuron contains synaptic vesicles that store neurotransmitters.
Synaptic Gap
- The synaptic cleft separates the presynaptic and postsynaptic membranes.
Receptor Location
- Specialized receptors that bind to neurotransmitters are located on the postsynaptic membrane.
Neurotransmitter Release Trigger
- Voltage-gated calcium channels trigger the release of neurotransmitters into the synaptic cleft.
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Description
Test your knowledge of synapse morphology with this quiz. Learn about the main features such as presynaptic terminals and the synaptic cleft.