| Blood travels from your heart to your legs through ____. |
arteries |
| The gluteus maximus is the largest ____ in your body. |
brain |
| The black circular opening of the eye is the ____. |
bronchi |
| The cerebrum, cerebellum, and medulla are parts of the ____. |
cord |
| The trachea divides into two main ____ that lead to the lungs. |
lungs |
| Your two ____ take in oxygen and expel carbon dioxide. |
muscle |
| The vertebral column encloses and protects the spinal ____. |
nervous |
| The brain and spinal cord are part of the central ____ system. |
pupil |
