What type of joint surfaces do the midcarpal joints have?

The midcarpal joints possess reciprocally convex and concave joint surfaces, which enables a degree of movement between the proximal and distal rows of carpal bones in the wrist. The surface of one bone features a convex shape while the corresponding surface of the adjacent bone has a concave shape, allowing for an effective and stable articulation that supports both flexion and extension, as well as some degree of radial and ulnar deviation.

This specific arrangement of joint surfaces is essential for the complex functions of the wrist, as it contributes to the intricacies of hand movement necessary for dexterity and strength in various tasks. The structure supports multi-directional movement, distinguishing it from other types of joints that may be less versatile or have more limited functions.