| Your ____ (breast bone) forms the front of your rib cage. |
cord |
| Your ____ (upper leg bone) the longest bone in your body. |
epiglottis |
| The ____ prevents food from entering the trachea. |
femur |
| A ____ is a noncellular infectious agent. |
ligament |
| A ____ connects a bone to another bone. |
marrow |
| The thin layer that lines the inner part of the eye is the ____. |
retina |
| Blood cells are made in the ____ (spongy tissue) of large bones. |
sternum |
| Your vertebral column encloses and protects your spinal ____. |
virus |
