- appendicular: bones at the outside of the skeleton; girdles and their limbs (extremities)
- appendicular skeleton: U & L extremities and bones of the girdles
- axial: bones down the ctr of the skeleton
- Axial skeleton: bones that lie around the longitudinal axis (ctr) of body; regions
- cranial bones: frontal , parietal, temporal, occipital, ethmiod , and sphednoid
- cranium: bones that surround and protect the brain 11 bones
- facial bones: 14 bones
- girdle: suppport extremities 2 parts: pectoral and pelvic
- lower extremity: from femur down
- pectoral: "chest" composed of clavicle and scapula
- pelvic: "hip" composed of 3 fused bones- iliac, ishium, and pubic bones
- regions of the appendicular skeleton: 4: pectoral girdles 4, pelvic girdles 2, upper limbs 60, and lower limbs 60 total 126 bones
- regions of the axial skeleton: 3: skull and assoc bones 29, vertebral column 26, thoracic cage 25 total 80 bones
- skull: rests on the first cervical ; 22 bones total : divided into 2 divisions: cranium and facial bones
- upper extremity: from humerus down