Question

question 16
the presence of an epiphyseal disc indicates that:
a the bone is dead
b the bone length is no longer increasing
c none of these
d the bone length is increasing

Explanation:

The epiphyseal disc (also known as the growth plate) is a layer of hyaline cartilage. As long as the epiphyseal disc is present, chondrocytes in the cartilage can divide and produce new cartilage, which is then replaced by bone tissue, leading to an increase in bone length. When the epiphyseal disc ossifies (becomes bone), it is called the epiphyseal line, and bone length growth stops. Option A is incorrect because the presence of the epiphyseal disc does not mean the bone is dead. Option B is incorrect as the presence of the disc indicates growth is still occurring.

Answer:

D. the bone length is increasing