Which cartilage type is characterized by the absence of a perichondrium around articular cartilage?

The correct answer highlights that articular cartilage, which covers the ends of bones at synovial joints, is primarily composed of hyaline cartilage. One of the defining features of articular cartilage is its lack of a perichondrium, a layer of dense connective tissue that typically surrounds cartilage in other locations. This absence allows for smoother joint movement and provides a resilient surface that can withstand the stresses imposed by movement and weight-bearing activities.

Hyaline cartilage, being the most abundant cartilage type in the body, is known for its glassy, blue-white appearance and is found not only in articular cartilage but also in the costal cartilages, respiratory structures, and the embryonic skeleton. The structure of hyaline cartilage contributes to its ability to provide support yet maintain flexibility, which is essential in joint function.

Other types of cartilage, such as elastic cartilage, fibrocartilage, and reticular cartilage, have distinct characteristics and locations in the body that do not apply to articular cartilage. Elastic cartilage, for example, is found in structures needing more flexibility, like the ear, and has a perichondrium. Fibrocartilage, found in intervertebral discs and pubic symphysis, is known for its dense collagen