Question

multiple choice 2 points
a growing long bone in a child has only two areas of cartilage at the epiphyses. these are
articular cartilage and epiphyseal plate
fibrocartilage and articular cartilage
epiphyseal plate and epiphyseal line
primary and secondary ossification centers
elastic cartilage and epiphyseal plate

Explanation:

Identify the cartilage locations

Using the Long Bone Anatomy and Epiphysis Structure knowledge points, a growing long bone in a child contains hyaline cartilage at two specific regions associated with the epiphysis: the articular cartilage covering the joint surface and the epiphyseal plate (growth plate) located between the epiphysis and diaphysis.

Evaluate the options

Using the Epiphyseal Line knowledge point:

• The epiphyseal line is a bony remnant of the epiphyseal plate found only in adults, not children.
• Fibrocartilage is not the primary cartilage of the epiphysis.
• Elastic cartilage is not found in long bones.
• Primary and secondary ossification centers are regions of bone formation, not areas of cartilage.
• Therefore, the two areas of cartilage are the articular cartilage and the epiphyseal plate.

Answer:

• (A) articular cartilage and epiphyseal plate (Correct answer)
• (B) fibrocartilage and articular cartilage
• (C) epiphyseal plate and epiphyseal line
• (D) primary and secondary ossification centers
• (E) elastic cartilage and epiphyseal plate