Which of the following best describes the structure of the menisci in the knee joint?

The menisci in the knee joint are best described as crescent-shaped and fibrocartilaginous due to their unique anatomical structure and function. Each meniscus, one on the medial side and one on the lateral side of the knee, has a distinct crescent or C-shape that helps to deepen the articulation between the femur and tibia, thus enhancing stability within the joint. This shape allows the menisci to distribute weight and absorb shock during movements, thereby protecting the knee from injuries.

Fibrocartilage, the type of tissue that composes the menisci, provides both strength and cushioning. This material is tougher than hyaline cartilage, which is found on the bone surfaces within the joint, and it facilitates the necessary flexibility and resilience to withstand the stresses placed on the knee during activities such as walking, running, and jumping.

The other descriptions do not accurately capture the menisci's characteristics. While they have some degree of density and elasticity due to their composition, the primary features that are crucial for their function in the knee joint are their crescent shape and fibrocartilaginous structure. This unique combination enables the menisci to perform their essential roles in load bearing and joint stability.