Which girdle anchors the lower limb?

Which girdle anchors the lower limb?

• A. Pelvic girdle
• B. Pectoral girdle
• C. Humerus
• D. Radius

Answer: (A)

Anchoring the lower limb to the trunk is the job of the pelvic girdle. This ring of hip bones, together with the sacrum, forms a sturdy, weight‑bearing platform that connects to the spine at the sacroiliac joints and to the femur at the acetabulum. That setup provides the stable foundation needed for standing and walking and efficiently transmits body weight to the axial skeleton. In contrast, the pectoral girdle (clavicles and scapulae) attaches the upper limbs to the axial skeleton and is geared more toward mobility than weight support. The humerus and radius are bones of the arm, not girdles, so they don’t anchor the lower limb.

Anchoring the lower limb to the trunk is the job of the pelvic girdle. This ring of hip bones, together with the sacrum, forms a sturdy, weight‑bearing platform that connects to the spine at the sacroiliac joints and to the femur at the acetabulum. That setup provides the stable foundation needed for standing and walking and efficiently transmits body weight to the axial skeleton. In contrast, the pectoral girdle (clavicles and scapulae) attaches the upper limbs to the axial skeleton and is geared more toward mobility than weight support. The humerus and radius are bones of the arm, not girdles, so they don’t anchor the lower limb.