It has 3 joints.
12
They have 1,000,000 joints
5
8
There are three joints in the human leg: the hip joint, the knee joint, and the ankle joint.
In the leg itself (disregarding either end of the leg), one; the knee joint.
muscle
Their joints are restricted, so around 5 or 6, given they walk sideways
a lady bug has 6 legs.
There are 10 bones in each leg. All ungulates have the same number in each leg. That would be a total of 40 bones.
to move
The leg has a joint at the knee, one at the hip, and one at the ankle. So each leg has 3.