This is an alternate content page containing a Labeling Activity. It has opened in a new window.
The activity has a picture. Areas in the picture are labeled. This activity requires that you match the text label with the appropriate labeled area of the image. Here is a list of the labels:

Superior Vena Cava
Aortic Arch
Body of Sternum
Pectoralis Muscle
Thymus Gland
Trachea
Esophagus
Rt Lung
Lt Lung
Azygos Vein