Which bone protects the brain ____? A: Calcium B: The cranium C: The cerebrum(大脑) D: The cerebellum(小脑)

Which of the following is not the bone in the axial skeleton? A: scapula B: cranium C: thoracic vertebrae D: sternum

What is the outermost edge of the spine of the shoulder blade? A: deltoid B: acromion C: spine D: cranium