The ends of the bones that form part of a joint are known as what?

The ends of the bones that form part of a joint are known as the epiphysis. This region of the bone is crucial because it is where the joint articulation occurs. The epiphysis is covered with cartilage, which helps minimize friction and absorb shock during movement, allowing the joint to function smoothly. Additionally, the epiphysis contains spongy bone, which is lighter and provides space for the red bone marrow involved in blood cell production.

In contrast, the diaphysis is the long shaft of the bone that provides strength and support, but it does not directly engage in joint formation. The epidermis is a term related to the outer layer of skin and is not relevant to bone anatomy. Fascia refers to connective tissue that surrounds muscles and other structures but does not pertain to the structure of bones or joints. Understanding these definitions helps clarify the important role of the epiphysis in joint function and overall skeletal health.