What is an epiphysis?

The correct answer defines an epiphysis as the unattached end of a bone that eventually becomes fused with the bone shaft. This is an important aspect of bone development, especially in growing individuals. The epiphysis is the rounded end of a long bone and consists of spongy bone covered by a layer of compact bone. During childhood and adolescence, the epiphysis is separated from the main body of the bone (the diaphysis) by a growth plate (the epiphyseal plate), which allows for bone lengthening. Once growth is complete, the epiphyseal plate hardens and the epiphysis fuses with the diaphysis, marking the end of bone elongation.

Understanding the structure and function of the epiphysis is crucial in fields such as forensic science and medicine, as the condition and appearance of the epiphysis can provide insights into an individual’s age at death and growth patterns.

The other options represent different concepts: cartilage is important in joint function and growth, connective tissue plays a role in the musculoskeletal system by connecting muscles to bones, and investigations concerning bones address forensic inquiries, but they do not define what an epiphysis is.