Procedure 1 Model Model Inventory for Parts of the Synase tor Pans of the nag 1.

Question

Procedure 1 Model Model Inventory for Parts of the Synase tor Pans of the nag 1. Parts of the synapse inventory in Table and diagams, record the name of the model and he structhures yo and diagrams using your tesbook and this unit for eefemece b. Axon terminal c. Synaptic vesicle d. Synaptic cleft e. Postsynaptic neuron f. Neurotransmitter receptors 12.1 (note that this is the model inventory from Exercise 12-1?3213. Procedure 2 Time to Trace ce the entire series of events through a three-neuron loop, including the steps of synageic transmission neurons 1 and 2, the propagation of the action potential down the axon of neuron 2, and the steps of synaptic transmission that occur between neuron 2 and 3. Hints are included to ensure that you stay on the right track as yora trace. You may wish to consult your textbook for more details on this process. When you have coempleted the activity answer Check Your Understanding questions S through 7 (p. 332) are released Start: neuronal action potential reaches the axon terminal of neuron 1- from the axon terminal by diffuse across the on the and bind to postsynaptic membrane of neuron 2, generating an excitatory local potential if the neuron is stimalated enough times, the excitatory local potentials toward the axon when the trigger zone is depolarized to and spread through the neuron's plasma membeane is generated, which diffuse down the axon until it reaches the axon terminals ? depolarization of the axon terminal triggers the opening of ion channels, and these ions enter the axon terminal> are released from the axon terminal by across the on the postsynaptic membrane of neuron 3,generating an excitatory or inhibitory local potential. End and bind to

Explanation / Answer

Answer. Neuron I neurotransmitters are released from the axon terminal by synaptic vesicles diffuse across the membrane and bind to receptors on the ... Local potentials generated and spread... Depolarized to polarized, an action potential is generated, which travels down the axon.. Opening of voltage-gated ion channels, and these ions enter the axon terminal calcium ions. Neurotransmitters are released from the axon terminal by synaptic vesicles diffuse across the Post synaptic membrane and binds to receptor proteins.... End.

Summary:

In the chemical synapse, neurotransmitters help and they travel across the pre-synaptic neuron to the post synaptic neuron. As action potential is brought to the pre synaptic neuron, it gets depolarized, voltage gated ion channels open and calcium ions move inside. This triggers the release of synaptic vesicles from the axon terminal of the pre synaptic neuron into the synaptic cleft. These vesicles then bind to the receptors on the Post synaptic neuron and brings the same changes in its axon terminal. In this way, information travels down from 1 neuron to another in a linear row until it reaches its destination.

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