1. The head is .............. to the tail.
2. The thumb is ............ to the elbow.
3. The lungs are ...............to the heart.
4. The nasal cavity is.................to the mouth .
5. The heart is....................to the elbow.
6. The heart is..................to the stomach.
7. The stomach is...................to the heart.
8. The diaphragm is......................to the lungs.
9. The wrist is......................to the shoulder.
10. The knee is......................to the ankle.