ICSI stands for

Options

A. Intracytoplasmic semen injection
B. Intracytoplasmic sperm injection
C. Interstitial cells stimulates inhibitors
D. Interstitial cell sperm injection

Answer

To solve the question "ICSI stands for", we will go through the options provided and identify the correct expansion of the acronym ICSI.

### Step-by-Step Solution:

1. **Identify the Acronym**: The acronym given is ICSI. We need to find out what it stands for in the context of biology, specifically in reproductive technology.

2. **Evaluate the Options**:
- **Option 1**: Intracytoplasmic Semen Injection
- This option is incorrect because the term "semen" is not used in this context; the correct term is "sperm".
- **Option 2**: Intracytoplasmic Sperm Injection
- This option is correct. ICSI refers to a procedure where a single sperm is injected directly into a mature egg, primarily used for treating male factor infertility.
- **Option 3**: Interstitial Cell Stimulate Inhibitors
- This option is incorrect as it does not relate to the ICSI procedure.
- **Option 4**: Interstitial Cell Sperm Injection
- This option is also incorrect and does not accurately describe the ICSI technique.

3. **Conclusion**: After evaluating all the options, the correct answer is **Option 2: Intracytoplasmic Sperm Injection**.