Answer:
The six types of syn ovial joints based on structural classification are plane, hing e, piv ot, condy loid, sa ddle, and ball-and-socket joints.
Step-by-step explanation:
The six types of syno vial joints based on structural classification are:
Plane joints: Articulating surfaces are flat or slightly curved.
Hin ge joints: One bone with a convex surface fits into a concave depre ssion of another bone.
Piv ot joints: A rounded or pointed surface of one bone articulates with a ring formed by another bone and a liga ment.
Co ndyloid joints: An oval-shaped con dyle of one bone fits into an elliptical cavity of another bone.
Sad dle joints: Articulating surfaces have both concave and convex areas, allowing movement in two planes.
Ball-and-socket joints: A spherical head of one bone fits into a rounded socket of another bone, allowing movement in multiple planes.
These joints facilitate various ranges of motion within the human body.
Thus, the six types of syn ov ial joints based on structural classification are plane, hin ge, piv ot, cond yloid, saddle, and ball-and-socket joints.