Frenulum is

Options

A. Adenoid present on pharyngeal wall
B. Tonsil found on lateral walls of soft palate
C. V-shaped sulcus dividing tongue into pharyngeal and oral parts
D. Fold attaching tongue

Answer

To answer the question "Frenulum is", we will analyze the options provided and determine the correct definition of frenulum.

### Step-by-Step Solution:

1. **Understanding the term "Frenulum":**
- A frenulum is a small fold or band of tissue that helps to anchor or restrict the movement of a body part.

2. **Analyzing the options:**
- **Option A:** Adenoid present on pharyngeal wall.
- This is incorrect. Adenoids are lymphatic tissue located in the nasopharynx, not a frenulum.

- **Option B:** Tonsil found on lateral walls of soft palate.
- This is also incorrect. Tonsils are lymphoid tissues and do not refer to a frenulum.

- **Option C:** V-shaped sulcus driving tongue into pharyngeal or oral parts.
- This is incorrect as well. This description does not match the definition of a frenulum.

- **Option D:** Pole attaching tongue.
- This is the correct answer. The frenulum of the tongue is a fold of tissue that connects the underside of the tongue to the floor of the mouth, thus anchoring the tongue.

3. **Conclusion:**
- Based on the analysis, the correct answer is **Option D: Pole attaching tongue**.