extension
The leg usually refers to the lower leg, so in this case, it would be the shin.
A broken leg.
Appendages and lower extremities.
Shin
For right leg: You lower your body in a Penche position (left leg up) and do a half-turn anticlockwise,then drop your leg and complete the turn (another half) right way up.
The lower half of a fraction is called the denominator.
haunches
This muscle is found in the lower part of the leg
either calf or shin. whichever.
It is the lower quartile.
The upper leg bone is the femur, and the largest lower leg bone is the tibia. The term meaning pertaining to these two bones is femerotibial.