Question

the arrow in the figure is pointing to which of the following structures?
○ a secondary ossification center
○ the articular cartilage
○ a primary ossification center

Explanation:

The articular cartilage is located at the ends of long - bones, providing a smooth surface for joint movement. The structure pointed to in the image is consistent with the location and appearance of articular cartilage. A primary ossification center is in the diaphysis of the bone, and a secondary ossification center is in the epiphysis but has a different appearance and function than what is shown.

Answer:

the articular cartilage