The cells of the main structural tissue of the body are present in particular spaces called

Options

A. ampulla
B. lacunae
C. lamellea
D. Canaliculi

Answer

To solve the question, we need to identify the specific term that describes the spaces where the cells of the main structural tissue of the body are found. Let's analyze the options provided:

1. **Ampulla**: This term refers to a duct found in organs like the liver and pancreas. It does not refer to a space for cells, so this option can be eliminated.

2. **Lacunae**: This term refers to small cavities or spaces found in bone tissue. These are the spaces where bone cells (osteocytes) reside. This option is a strong candidate.

3. **Lamella**: This term refers to thin layers of tissue, particularly in bone. It does not refer to a space for cells, so this option can be eliminated.

4. **Canaliculi**: These are small channels that connect lacunae and allow for the exchange of nutrients and waste between bone cells. While they are important for cell communication, they do not represent the primary spaces where cells are located.

Based on this analysis, the correct answer is **Lacunae**.

### Step-by-Step Solution:
1. **Identify the question**: We need to find out what spaces cells of the main structural tissue of the body are found in.

2. **Analyze the options**:
- **Ampulla**: Not relevant to cell spaces.
- **Lacunae**: Relevant, as these are cavities in bones where cells are found.
- **Lamella**: Not relevant to cell spaces.
- **Canaliculi**: Not the primary spaces for cells.

3. **Select the correct answer**: Based on the analysis, the correct answer is **Lacunae**.