Question

match the following types of joints with the letters shown on the illustration.
a
b
c
d
e
f
saddle joint
gliding joint
hinge joint
pivot joint
condylar joint
ball - and - socket joint

Explanation:

• A. Gliding joint: Gliding joints allow bones to glide over one another. In the image, the joint labeled \(A\) (between carpal bones) shows this characteristic movement.
• B. Hinge joint: Hinge joints allow movement in one plane (flexion - extension). The joint between the humerus and ulna (\(B\)) is a classic hinge joint.
• C. Pivot joint: Pivot joints allow rotational movement. The joint between the radius and ulna (\(C\)) is a pivot joint.
• D. Condylar joint: Condylar joints allow movement in two planes (flexion - extension and abduction - adduction). The joint between the metacarpal and phalanx (\(D\)) is a condylar joint.
• E. Saddle joint: Saddle joints have a saddle - like shape and allow movement in multiple planes. The joint between the carpal and metacarpal (\(E\)) is a saddle joint.
• F. Ball - and - socket joint: Ball - and - socket joints allow a wide range of movement in multiple planes. The joint between the head of the humerus and scapula (\(F\)) is a ball - and - socket joint.

Answer:

A. gliding joint, B. hinge joint, C. pivot joint, D. condylar joint, E. saddle joint, F. ball - and - socket joint