Chemicals which are released at the synaptic junction are called

Options

A. hormones
B. neurotransmitters
C. lymph
D. cerebrospinal fluid

Answer

**Step-by-Step Solution:**

1. **Understanding Synaptic Junctions**:
- Synaptic junctions are the points of communication between two neurons. They consist of a pre-synaptic neuron (the sending neuron) and a post-synaptic neuron (the receiving neuron).

2. **Identifying the Neurons**:
- The pre-synaptic neuron has an axon that releases chemicals, while the post-synaptic neuron has dendrites that receive these chemicals.

3. **Transmission of Nerve Impulses**:
- Nerve impulses travel along the axon of the pre-synaptic neuron in the form of electrical signals.

4. **Conversion of Electrical Signals**:
- When the electrical impulse reaches the end of the axon at the synaptic junction, it triggers the release of chemicals.

5. **Role of Chemicals**:
- These chemicals are responsible for transmitting the signal from the pre-synaptic neuron to the post-synaptic neuron.

6. **Identifying the Chemicals**:
- The chemicals released at the synaptic junction are known as neurotransmitters. They act as chemical messengers that facilitate communication between neurons.

7. **Conclusion**:
- Therefore, the correct answer to the question is that the chemicals released at the synaptic junction are called **neurotransmitters**.

**Final Answer**: Neurotransmitters

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