The diaphragm is (a)   to the lungs.

The heart is (a)   to the diaphragm.

The head is (a)   to the neck.

The esophagus is (a)   to the vertebral column.

The brain is (a)   to the spinal cord.

The fingers are (a)   to the hand.

The lungs are (a)   to the heart.

The kneecap is (a)   to the knee joint.

The eyes are (a)   to the bridge of the nose.

The nose is (a)   to the ears.

The thumb is (a)   to the hand.

Bones are (a)   to the skin.

The heels are (a)   to the toes.

The calf muscle is (a)   to the ankles.

The hands are (a)   to the feet.

The shoulders are (a)   to the midline.

The hamstring is (a)   to the quadriceps.

The knees are (a)   to the waist.

The neck is (a)   to the arms.

The arms are (a)   to the midline.

The biceps are (a)   to the triceps.

The heart is (a)   to the elbow.