Appendicular Skeleton Anatomy & Physiology

Pectoral Girdle

Scapula (2) shoulder blade glenoid cavity coracoid process depression that articulates with humerus coracoid process point of attachment for muscles acromion process articulates with the clavicle

Clavicle (2) collarbone articulates with sternum and the scapula

Upper Limbs Humerus (2) Head articulates with glenoid cavity of scapula Trochlea articulates with the ulna

Radius (2) Head articulates with the humerus Radial Tuberosity projection where the tendon of the biceps brachii attaches

Ulna (2) Trochlear Notch articulates with trochlea of humerus

Hand Carpals (16) Metacarpals (10) Phalanges (28) wrist 8 bones each hand Metacarpals (10) palm 5 bones each hand Phalanges (28) fingers 14 bones each hand

Hip/Pelvic/Coxal Bone (2) Each coxal bone is formed by the fusion of 3 bones Acetabulum Deep depression that articulates with the head of the femur

Male or Female Skeleton? Female pelvis Pubic arch is more rounded Angle of the pubic arch is greater Female pelvis lighter

Femur (2) heaviest bone in the body Head Greater and lesser trochanter articulates with the acetabulum of coxal bone Greater and lesser trochanter Muscle attachment

Fibula (2) Lateral lower leg bone Head of fibula articulates with the tibia

Tibia (2) Large medial lower leg bone Tibial tuberosity roughened projection on the anterior surface where the patellar ligament attaches Anterior crest

Patella (2) sesamoid kneecap bone Posterior surface articulates with the femur

Tarsals (14) Talus most superior tarsal bone Calcaneus heel bone

Metatarsals (10) form the distal portion of the foot where the arch is located

Phalanges (28) The hallux (big toe) has 2 phalanges Other 4 toes have 3 phalanges