Appendicular Skeleton Ch. 8. Appendicular Skeleton 126 bones Limbs Girdles Allows us to move and manipulate objects.

Appendicular SkeletonCh. 8

Appendicular Skeleton

• 126 bones• Limbs• Girdles

• Allows us to move and manipulate objects

Pectoral girdle

• Clavicle• Scapula • Acromion process• Articulates with

clavicle• Coracoid process• Provides attachment

for limb and chest muscles

• Glenoid cavity• Articulates with the

head of the humerus

Pectoral girdle

Pectoral Girdle

• 2 Clavicle• Collarbones

• 2 Scapulae• Shoulder

Blades

Upper limb

• Humerus• Head• Medial epicondyle• Lateral epicondyle• Olecranon fossa

• Radius• Ulna• Olecranon process• Coronoid Process

• Hand• Carpals• Metacarpals• Phalanges

Upper Limbs

Pelvic Girdle

Pelvic girdle

• Also known as the Pelvis• Functions• Support, attachment points, and protect

organs

• Pelvis is divided into 2 parts• Os Coxa• Ilium• Largest, most superior portion of the Os Coxa

• Ischium• Inferior portion of the Os Coxa

• Pubis• Most anterior portion of the Os Coxa

• Acetabulum • Portion of the Os Coxa that articulates with

the head of the Femur

Lower limb

• Femur• Patella• Tibia • Fibula• Foot

Femur

• Head• Neck• Greater trochanter• Lesser trochanter• Shaft• Medial condyle• Lateral condyle• Patellar surface

Tibia fibula

• Tibia• Medial Malleolus

• Fibula • Lateral Malleolus

Foot

• Tarsals• Calcaneus

• Metatarsals• Phalanges