Coronary process is a part of

Options

A. Upper jaw
B. Lower jaw
C. Hyoid apparatus
D. Cranium.

Answer

### Step-by-Step Solution:

1. **Understanding the Term "Coronoid Process":**
- The coronoid process is a specific anatomical feature that can be found on certain bones. It is described as a thin, flat, triangular eminence.

2. **Identifying the Options:**
- The question provides four options:
- Upper jaw
- Lower jaw
- Hyoid apparatus
- Threnium

3. **Analyzing the Bones:**
- The upper jaw is known as the maxilla.
- The lower jaw is known as the mandible.
- The hyoid apparatus is a bone located in the neck.
- The term "threnium" is not commonly used in anatomy.

4. **Locating the Coronoid Process:**
- The coronoid process is specifically associated with the mandible, which is the lower jaw bone. It serves as an attachment point for muscles involved in chewing.

5. **Conclusion:**
- Based on the information, the coronoid process is a part of the **lower jaw** (mandible). Therefore, the correct answer is **Lower jaw**.

### Final Answer:
The coronoid process is a part of the **lower jaw** (mandible).