The functional connection between two neurons is called :

Options

A. Synapse
B. Synapsis
C. Chiasma
D. Chiasmata

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the term that describes the functional connection between two neurons.

2. **Analyzing the Options**: The options provided are:
- Synapse
- Synapses
- Chiasma
- Chiasmata

3. **Defining Synapse**: A synapse is a structure that allows a neuron to pass electrical or chemical signals to another neuron or target cell. It is essential for neuronal communication.

4. **Explaining the Mechanism**: In a synapse, the pre-synaptic neuron (the neuron sending the signal) has a plasma membrane that comes close to the post-synaptic membrane (the neuron receiving the signal). This proximity allows for the transmission of signals.

5. **Identifying the Correct Answer**: Since the question specifically asks for the functional connection between two neurons, and based on the definition and explanation of synapse, the correct answer is "synapse."

6. **Final Answer**: The functional connection between two neurons is called a **synapse**.

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