Glenoid cavity is found in:

Options

A. Pelvic gridle
B. Pectoral girdle
C. Sternum
D. Humerus

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks where the glenoid cavity is found.

2. **Identifying the Glenoid Cavity**: The glenoid cavity is a part of the skeletal system, specifically associated with the shoulder.

3. **Locating the Glenoid Cavity**: The glenoid cavity is located at the lateral angle of the scapula (shoulder blade). It is a shallow, pyriform (pear-shaped) articular surface that articulates with the head of the humerus (the upper arm bone).

4. **Evaluating the Options**:
- **Option 1: Pelvic girdle** - This is incorrect. The pelvic girdle is located at the lower part of the trunk and does not contain the glenoid cavity.
- **Option 2: Pectoral girdle** - This is correct. The pectoral girdle, also known as the shoulder girdle, includes the scapula and is where the glenoid cavity is found.
- **Option 3: Sternum** - This is incorrect. The sternum, or breastbone, is located in the central part of the chest and does not contain the glenoid cavity.
- **Option 4: Humerus** - This is incorrect. The humerus is the bone of the upper arm that connects to the pectoral girdle but does not contain the glenoid cavity.

5. **Conclusion**: The correct answer is **Option 2: Pectoral girdle**.

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