Final answer:
A condyloid joint is the joint between the metacarpal bones and proximal phalanges of the fingers, allowing for flexion/extension and abduction/adduction movements.
Step-by-step explanation:
A condyloid joint is the joint between the metacarpal bones and proximal phalanges of the fingers. This joint is also known as a knuckle joint. It consists of an oval projection of one bone (metacarpal bone) that fits into an oval depression of another bone (proximal phalanx bone). The condyloid joint allows movement in two directions - flexion/extension and abduction/adduction. It is a biaxial joint that enables bending and straightening of the fingers or anterior-posterior movements of the hand, as well as side-to-side movement to spread the fingers apart or bring them together.