Question

1. the ____ of a long bone covers the distal and proximal epiphyses

a. diaphysis
b. periosteum
c. bone marrow
d. articular cartilage

Explanation:

To solve this, we analyze each option:

• Option a: Diaphysis is the shaft of a long bone, not covering epiphyses.
• Option b: Periosteum covers the diaphysis, not the epiphyses.
• Option c: Bone marrow is inside the bone (medullary cavity), not covering epiphyses.
• Option d: Articular cartilage covers the distal and proximal epiphyses of long bones to reduce friction at joints.

Answer:

d. Articular cartilage