Skeletal Organization 7.5 p. 205 – p. 259

Basics 206 bones in human body Made up of 2 parts: – Axial Skeleton – Appendicular Skeleton

Axial Skeleton Skull Vertebral Column Thoracic Cage

Appendicular Skeleton Pectoral girdle Upper limbs Pelvic girdle Lower limbs

Skull Cranial bones Facial bones

Cranial Bones

Facial Bones

Vertebral Column Regions: – Cervical – Thoracic – Lumbar – Sacral Shapes vary Intervertebral discs – Separate and cushion vertebrae

Thoracic Cage -Ribs (12) -True ribs, false ribs, floating ribs -Sternum -Manubrium -Body -Xyphoid process -Cartilage

Pectoral Girdle 2 clavicles 2 scapulae (scapula)

Upper Limb Humerus Radius Ulna Hand – Carpals – Metacarpals – Phalanges

Pelvic Girdle Hip bones – Ilium – Ischium – Pubis Male pelvis is more slender than the female pelvis – Female ilium is wider

Lower Limb Femur Patella Tibia Fibula Foot: – Tarsals – Metatarsals – Phalanges