1. corazón   heart   nerves   spine   lung   Hint Half-n-half Clue   2. encías   gums   heart   spine   nerves   Half-n-half Clue   3. cráneo   liver   muscle   skull   spine   Half-n-half Clue   4. intestinos   lung   skull   veins   intestines   Half-n-half Clue   5. espina dorsal, columna vertebral   spine   nerves   blood   stomach   Half-n-half Clue   6. riñón   intestines   kidney   throat   veins   Half-n-half Clue   7. nervios   veins   brain   nerves   blood   Half-n-half Clue