All together they are called the skeleton.
3.

The skeleton is divided as follows: _a._ The skull.
{ Ribs.
_b._ The trunk.

{ Breast-bone.
{ Pelvis.
{ Back-bone.
{ Collar-bone.
{ Shoulder-blade.
{ Upper arm-bones.
_c._ The arms.

{ Lower arm-bones.
{ Wrist.
{ Hand and fingers.
{ Thigh.
{ Knee-pan.
_d._ The legs.

{ Lower-leg bones.
{ Ankle, including heel-bone.
{ Foot and toes.
4.