What type of joint primarily enables gliding or sliding movements?

The type of joint that primarily enables gliding or sliding movements is the plane joint. Plane joints, also known as gliding joints, allow the bones to slide over one another. This movement is characterized by flat or slightly curved surfaces that can slide past each other in various directions.

Plane joints are commonly found in areas such as the wrist (between the carpal bones) and the ankle (between the tarsal bones), allowing for subtle movements that contribute to overall mobility and flexibility of these regions. The ability to perform gliding movements can assist in a range of motions, contributing to the functional capabilities of the limbs during various activities.

In contrast, hinge joints permit only flexion and extension (as seen in the elbow), pivot joints allow for rotation around a single axis (such as in the neck), and saddle joints enable a wide range of movement but are more specific in their function (like the thumb). Thus, the structure and function of the plane joint uniquely facilitate gliding movements.