Question

which of the following groups of bones, based on shape, is associated with an incorrect example?
a irregular bones - vertebrae
b short bones - wrist and ankle bones
c long bones - forearm bones
d flat bones - thigh bones

Explanation:

• Option A: Vertebrae are irregular bones as they have complex shapes, so this is correct.
• Option B: Wrist and ankle bones are short bones (cube - shaped), so this is correct.
• Option C: Forearm bones (radius and ulna) are long bones (longer than they are wide), so this is correct.
• Option D: Thigh bone (femur) is a long bone, not a flat bone. Flat bones are like the skull bones, sternum etc. which are thin and flat.

Answer:

D. Flat bones - thigh bones