What does structure "B" represent on the bone diagram?

A) Spongy bone
B) Diaphysis
C) Epiphyseal lines
D) Articular cartilage
E) Epiphysis

Diaphysis

The core segment of an elongated bone.

Epiphyseal Lines

The remnants of the epiphyseal plate in long bones, seen in adults, indicating the previous site of longitudinal growth during childhood and adolescence.

Articular Cartilage

The smooth, white tissue that covers the ends of bones where they come together to form joints.