Which of the following is/are not component(s) of the pelvic girdle? A. sacrum B. Femurs C. Hip bones D. Coxal bones

Answer

The correct answer is Femurs. The pelvic girdle is specifically the part of the appendicular skeleton that connects the lower limbs to the axial skeleton. It is composed of two hip bones, also known as coxal bones (which are formed by the fusion of the ilium, ischium, and pubis). Anatomically, some definitions include the sacrum when discussing the 'pelvic complex' or 'bony pelvis,' but the sacrum is technically a part of the axial skeleton (vertebral column). However, in most multiple-choice contexts regarding girdle components, the femurs are the clear outlier. The femurs are the bones of the thigh (lower limb) and articulate with the pelvic girdle at the hip joint, but they are not considered a part of the girdle itself.