Which of the following are components of the thoracic cage?

• A. Clavicle, scapula, and humerus
• B. Ribs, sternum, and thoracic vertebrae
• C. Cranium, mandible, and maxilla
• D. Pelvis, sacrum, and coccyx

Answer: (B)

Verified step by step guidance

1. Understand the anatomy of the thoracic cage, which is part of the axial skeleton and serves to protect vital organs such as the heart and lungs.
2. Identify the primary components of the thoracic cage: the ribs, sternum, and thoracic vertebrae.
3. Recognize that the clavicle, scapula, and humerus are part of the appendicular skeleton, specifically the shoulder girdle and upper limb.
4. Note that the cranium, mandible, and maxilla are components of the skull, which is not part of the thoracic cage.
5. Understand that the pelvis, sacrum, and coccyx are part of the pelvic region, which is located below the thoracic cage and not part of it.