The tibia articulates distally with which one of the following?

Correct Answer: A

Rationale: Distally, the tibia articulates with tarsals (e.g., talus) at the ankle, not metatarsals, phalanges, or femur (proximal). Answer is A, per the document.

Correct Answer: C

Rationale: A foramen is a hole in a bone (e.g., foramen magnum) for nerves/vessels, not a depression, roughening, or projection. Answer is C, per the document.

Correct Answer: C

Rationale: The rib cage (ribs, sternum, thoracic vertebrae) primarily protects the heart and lungs in the thoracic cavity. Stomach is abdominal, spinal cord is within vertebrae, and lungs attach via pleura—not the rib cage’s purpose. 'Protect the heart and lungs' is correct.

Correct Answer: B

Rationale: Muscles move bones by pulling via tendons when they contract; they can’t push (bones provide push via leverage). Automatic isn’t a mechanism, making 'pull movement only' correct.

Correct Answer: B

Rationale: Endochondral ossification, the process forming most bones, begins with a hyaline cartilage model that is gradually replaced by bone. Costal cartilage connects ribs to the sternum, fibroelastic isn’t a standard cartilage type (likely meant fibrocartilage), and articular cartilage covers joint surfaces, not serving as a precursor.