The sigmoid notch is present in

$A$: Tibia is stronger and is present medially,whereas fibula is the outer and slender bone of the lower leg or shank.
$R$: Tibia has a sharp crest in the shaft and a projection on the inner side of the ankle called the lateral malleolus.

Number of tarsals,metatarsals and phalanges in human skeleton is

In humans,the pelvic girdle consists of ...... coxal bones.

The olecranon process is found in:

Each human limb is made of (in $bones$)