The region in the body where the polio virus multiplies is

Options

A. nerve cells
B. muscle cells
C. intestianl cells
D. None of these

Answer

To determine the region in the body where the polio virus multiplies, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Polio Virus Transmission**: The polio virus is primarily transmitted through the oral-fecal route. This means it enters the body through the mouth.

**Hint**: Think about how viruses typically enter the body and where they might first replicate.

2. **Initial Replication Site**: After entering the body, the polio virus multiplies in the throat and gastrointestinal (GI) tract. This is a crucial step because it indicates where the virus begins to replicate.

**Hint**: Consider the organs and systems that are involved in digestion and respiration.

3. **Further Spread**: Once the virus has multiplied in the throat and GI tract, it can then spread to the central nervous system (CNS) through the bloodstream. However, the question specifically asks where the virus multiplies, not where it spreads.

**Hint**: Focus on the location of replication rather than the pathways the virus takes afterward.

4. **Identifying the Correct Answer**: Among the options provided (nerve cells, muscle cells, intestinal cells, or none of these), the correct answer is "intestinal cells" since that is where the polio virus multiplies initially.

**Hint**: Eliminate options that do not relate to the initial multiplication of the virus.

### Final Answer:
The region in the body where the polio virus multiplies is **intestinal cells**.