We have explained that there are joints where bones
are connected to each other. For example, we can bend
and straighten out our arms and legs thanks to the joints
located at our elbows and knees. Although they move
throughout our lives, these joints never need to be lubri-
cated. Machines, however, need regular maintenance. For
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Your joints enable you to easily bend your fin-
gers. There is a special design between the
joints to prevent friction, and therefore wear and
tear, and pain.
Wrist bone
Metacarpal
Metacarpal
Finger bone
Finger
bone
Finger bone
Joint
fluid
Joint
Joint
Joint
Joint
Joint
Joint
membrane
Cartilage
