The Bony Thorax Consists of three parts Sternum Ribs True ribs (pairs 1–7) False ribs (pairs 8–12) Floating ribs (pairs 11–12) Thoracic vertebrae (T1-T12) The Appendicular Skeleton Pectoral Girdle (Shoulder) Clavicle—collarbone Scapula—shoulder blade Allow for exceptional free movement Pectoral Girdle (Shoulder) Pectoral Girdle (Shoulder) Upper Limbs Humerus Forms the upper arm Single bone Upper Limbs Forearm (2 bones) Ulna Radius Hands Carpals (wrist) Metacarpals (palm) Phalanges (fingers) Bones of the Pelvic Girdle Formed by 2 coxal bones Coxal bones composed of 3 pairs of fused bones Ilium Ischium Pubis Total weight of body rests here!! Bones of the Pelvic Girdle Bones of the Pelvic Girdle Gender differences The female inlet is larger and more circular bones are lighter and thinner The female ilia flare more laterally The female sacrum is shorter and less curved The female pubic arch is more rounded (accute vs. obtuse) Bones of the Lower Limbs Femur Thigh The heaviest, strongest bone in the body Foot Tarsals Two largest tarsals Calcaneus (heelbone) Talus Metatarsals—sole Phalanges—toes Arches of the foot 3 arches Two longitudinal One transverse Fibrous Joints Cartilaginous Joints Synovial Joints Types of Synovial Joints based on shape Plane Joint Hinge Joint Pivot Joint Types of Synovial Joints based on shape Condyloid Joint Saddle Joint Ball and Socket Joint