B.P.S.C. (C.D.P.O.) (Pre) 2005

The number of bones in the hands and feet of an adult human, compared to the total number of bones in a human, is approximately what percentage?

a20%
b30%
c40%
d50%✓ Correct

Explanation

In an adult human, the total number of bones is 206, whereas the upper and lower limbs (extremities), i.e., the hands and feet, along with the girdles that connect them to the trunk, together have 126 bones; that is, about 60% of the total bones. Their distribution is as follows— (a) Upper (upper extremities) Pectoral (shoulder) girdles → 4 Hands → 60 (b) Lower (lower extremities) Pelvic girdle → 2 Legs → 60

general-science