Identify the odd one from the following.

Options

A. Labia minora
B. Fimbriae
C. infundibulum
D. Isthmus

Explanation

To identify the odd one out from the given options, we will analyze each option based on their anatomical significance and location in the female reproductive system.

### Step-by-Step Solution:

1. **Identify the Options**: The options given are:
- Labia Minora
- Fimbriae
- Infundibulum
- Isthmus

2. **Analyze Labia Minora**:
- The labia minora are paired folds of tissue located beneath the labia majora.
- They surround the vaginal opening and are part of the external genitalia.

3. **Analyze Fimbriae**:
- Fimbriae are finger-like projections located at the end of the fallopian tubes (oviducts).
- They play a crucial role in capturing the egg released from the ovary during ovulation.

4. **Analyze Infundibulum**:
- The infundibulum is the funnel-shaped structure at the end of the fallopian tube, closest to the ovary.
- It helps in the collection of the egg after ovulation.

5. **Analyze Isthmus**:
- The isthmus is the narrow part of the fallopian tube that connects to the uterus.
- It is also a part of the oviduct.

6. **Identify the Odd One**:
- Labia minora is part of the external genitalia, while fimbriae, infundibulum, and isthmus are all parts of the internal reproductive system (specifically the fallopian tubes).
- Therefore, the odd one out is **Labia Minora**.

### Final Answer:
The correct answer is **Labia Minora** (Option 1).

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