Which of the following components is a part of the pectrol girdle ?

Options

A. Sternum
B. Acetabulum
C. glenoid cavity
D. llium

Answer

To solve the question regarding which component is a part of the pectoral girdle, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Pectoral Girdle**:
- The pectoral girdle, also known as the shoulder girdle, connects the upper limb to the trunk. It consists primarily of two bones: the scapula (shoulder blade) and the clavicle (collarbone).

2. **Identify Components of the Pectoral Girdle**:
- The main components of the pectoral girdle include the scapula and the clavicle. Within the scapula, there is a specific structure called the glenoid cavity, which is the socket for the shoulder joint.

3. **Evaluate the Options**:
- The question provides several options, including:
- A) Sternum
- B) Estabulum
- C) Glenoid Cavity
- We need to determine which of these is a part of the pectoral girdle.

4. **Analyze Each Option**:
- **Sternum**: This is the breastbone located in the center of the chest and is not part of the pectoral girdle.
- **Estabulum**: This is a part of the pelvic girdle, specifically the socket for the hip joint, and is not related to the pectoral girdle.
- **Glenoid Cavity**: This is a part of the scapula and is indeed a component of the pectoral girdle.

5. **Conclusion**:
- After evaluating the options, the correct answer is **C) Glenoid Cavity**, as it is a part of the pectoral girdle.