The new potential developed in the post-synaptic neuron is

Options

A. Excitatory
B. Inhibitory
C. Either excitatory or inhibitory
D. Neither excitatory nor inhibitory

Explanation

To answer the question regarding the new potential developed in the post-synaptic neuron, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Synaptic Transmission**:
- Synaptic transmission occurs between two neurons at the synapse, which consists of the pre-synaptic neuron and the post-synaptic neuron.

2. **Components of the Synapse**:
- The pre-synaptic neuron contains synaptic vesicles filled with neurotransmitters. The post-synaptic neuron has receptors on its membrane that bind these neurotransmitters.

3. **Release of Neurotransmitters**:
- When an action potential reaches the pre-synaptic terminal, neurotransmitters are released into the synaptic cleft (the gap between the two neurons).

4. **Binding to Receptors**:
- The released neurotransmitters travel across the synaptic cleft and bind to specific receptors on the post-synaptic membrane.

5. **Generation of Post-Synaptic Potential**:
- The binding of neurotransmitters to receptors can lead to changes in the membrane potential of the post-synaptic neuron. This change can either be excitatory or inhibitory, depending on the type of neurotransmitter released.

6. **Types of Potentials**:
- If the neurotransmitter is excitatory (e.g., acetylcholine), it will lead to depolarization of the post-synaptic membrane, generating an excitatory post-synaptic potential (EPSP).
- If the neurotransmitter is inhibitory (e.g., glycine), it will lead to hyperpolarization of the post-synaptic membrane, generating an inhibitory post-synaptic potential (IPSP).

7. **Conclusion**:
- Therefore, the new potential developed in the post-synaptic neuron can be either excitatory or inhibitory, depending on the neurotransmitter involved.

### Final Answer:
The new potential developed in the post-synaptic neuron is either excitatory or inhibitory.

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