What sport are floor exercises part of?   What body parts does #1 require? What part of the body part is the tibia? Is #3 in #2?
Tibia
Is the tibia required for floor exercises?
The tibia is a bone in the lower leg Floor exercises are a program in gymnastics competitions Gymnastics requires use of arms and legs, as well as other parts of the body
larger of the two bones of the leg below the knee for vertebrates