The skeletal system

Front

Skull
Options: 4, 1, 7, 2

Back

1

Front

Ribcage (ribs)

Back

The structure formed by the ribs that protects the thoracic cavity.

Front

Spine (backbone)

Back

6

Front

Pelvis
Options: 3, 7, 2, 6

Back

3

Front

Radius

Back

10

Front

Humerus

Back

7

Front

Ulna

Back

The ulna is one of the two long bones in the forearm.

Front

Falanges: 9, 5, 10, 11

Back

9

Front

Femur

Back

5

Front

Tibia

Back

8