Which is part of pectoral girdle ?

Options

A. Stemum
B. Acetabulum
C. Glenoid cavity
D. llium

Answer

**Step-by-Step Solution:**

1. **Definition of Pectoral Girdle**: The pectoral girdle, also known as the shoulder girdle, is a structure that connects the upper limb bones to the axial skeleton.

2. **Components of Pectoral Girdle**: The pectoral girdle consists of two main bones: the scapula (shoulder blade) and the clavicle (collarbone).

3. **Function of the Scapula**: The scapula has a specific cavity known as the glenoid cavity. This cavity plays a crucial role in the shoulder joint.

4. **Articulation with Humerus**: The glenoid cavity is located at the lateral angle of the scapula and articulates with the humerus bone, allowing for the formation of the shoulder joint.

5. **Conclusion**: Therefore, the parts of the pectoral girdle include the scapula and clavicle, with the glenoid cavity being a notable feature of the scapula involved in shoulder joint formation.

**Final Answer**: The parts of the pectoral girdle are the scapula and clavicle, with the glenoid cavity being a significant component.

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