End plate junction is present between

Options

A. Neuron and striated muscle
B. Neuron and muscle
C. Muscle and muscle
D. Both B and C.

Answer

### Step-by-Step Solution:

1. **Understanding the End Plate Junction**: The end plate junction is also known as the neuromuscular junction (NMJ). It is a critical site where communication occurs between a neuron and a muscle fiber.

2. **Identifying the Components**: The end plate junction consists of a presynaptic neuron (the neuron that sends the signal) and a postsynaptic muscle fiber (the muscle that receives the signal).

3. **Structure of the Neuron**: The neuron has a cell body and an axon that extends towards the muscle. The axon terminal is where the neuron communicates with the muscle fiber.

4. **Connection to Muscle**: The axon terminal of the neuron connects to the muscle fiber at the neuromuscular junction. This is where the neurotransmitter is released to stimulate muscle contraction.

5. **Types of Muscles Involved**: The end plate junction can occur between a neuron and various types of muscle fibers, including striated (skeletal) muscle, smooth muscle, and cardiac muscle.

6. **Final Conclusion**: Therefore, the end plate junction is present between a neuron and a muscle fiber, specifically striated muscle fibers in the context of voluntary movement, but it can also be present in other types of muscle.