In frog, the surface of attachment of tongue is

Options

A. (a) palatine
B. (b) sphenoid
C. (c) pterygoid
D. (d) hyoid apparatus

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the surface of attachment of the tongue in frogs. We need to identify which anatomical structure in frogs serves this function.

2. **Identifying Relevant Bones**: We will look at the bones present in the skull of frogs and their roles. The options provided are:
- A) Palatine
- B) Sphenoid
- C) Pterygoid
- D) Hyoid apparatus

3. **Analyzing Each Option**:
- **Option A: Palatine**: This bone is located in the oral cavity, nasal cavity, and orbits of the skull. However, it does not play a role in the attachment of the tongue. Therefore, this option is incorrect.
- **Option B: Sphenoid**: This bone is situated in the middle of the skull and helps form the oral cavity but does not provide a surface for the attachment of the tongue. Thus, this option is also incorrect.
- **Option C: Pterygoid**: This bone contributes to the formation of the palate but does not serve as the attachment point for the tongue. Hence, this option is incorrect as well.
- **Option D: Hyoid apparatus**: This structure is located on the floor of the buccal cavity. It is crucial for the attachment of tongue muscles and respiratory muscles, facilitating functions like ingestion of food and breathing. Therefore, this is the correct answer.

4. **Conclusion**: The surface of attachment of the tongue in frogs is the **hyoid apparatus**.

**Final Answer**: The surface of attachment of the tongue in frogs is the **hyoid apparatus**.

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