Final answer:
The 2 fibrocartilaginous pads on the proximal end of the tibia that act as shock absorbers and are moon-shaped are called menisci. They provide padding between the bones and help to fill the gap between the round femoral condyles and flattened tibial condyles.
Step-by-step explanation:
The 2 fibrocartilaginous pads on the proximal end of the tibia that act as shock absorbers and are moon-shaped are called menisci. They are located between the articulating surfaces of the femur and tibia in the knee joint. The menisci provide padding between the bones and help to fill the gap between the round femoral condyles and flattened tibial condyles.