The union of the proximal and middle phalanges form __________ joints.
A) pivot
B) plane (gliding)
C) hinge
D) saddle
E) condylar (ellipsoid)

Question

Quizplus · Accepted Answer

The proximal and middle phalanges form a hinge joint, which allows for flexion and extension movements in one plane. Pivot joints have a rotational movement around a central axis, plane (gliding) joints have a sliding or gliding motion, saddle joints have concave and convex surfaces that fit together, and condylar (ellipsoid) joints have an oval-shaped end of one bone fitting into an elliptical cavity of another bone, allowing for movement in two planes. None of these descriptions fit the joint formed by the proximal and middle phalanges.

The Union of the Proximal and Middle Phalanges Form __________