 Appendicular Skeleton

The Pectoral (Shoulder) Girdle  Composed of 2 bones  Clavicle – collarbone  Scapula – shoulder blade  These bones allow the upper limbs to have exceptionally free movement

Bones of the Shoulder Girdle

Bones of the Upper Limb  The arm is formed by a single bone  Humerus

Bones of the Upper Limb  The forearm has 2 bones:  Ulna  Radius

Bones of the Upper Limb  The hand  Carpals – wrist  Metacarpals – palm  Phalanges - fingers

Put it all together…

Bones of the Pelvic Girdle  Hip Bones  Composed of three pair of fused bones  Ilium  Ischium  Pubic bone  The total weight of the upper body rests on the pelvis  Protects several organs  Reproductive organs  Urinary bladder  Part of the large intestine

The Pelvis

Gender differences of the Pelvis  F. inlet is larger and more circular  F. ilia flare more laterally  F. sacrum shorter & less curved  F. pubic arch is more rounded b/c the angle of the pubic arch is greater  Why the differences?!  Dimensions of the F. pelvis are very important for childbirth

Bones of the Lower Limb  The thigh has one bone  Femur

Bones of the Lower Limbs  The leg has 2 bones  Tibia  Fibula

Bones of the Lower Limb  The foot  Tarsus – ankle  Metatarsals – sole  Phalanges - toes

Put it all together…