a. Elbow and shoulder
The elbow is distal to the shoulder while the shoulder is proximal to the elbow.
b. left and right shoulders
The left and right shoulders are contralateral.
c. Sternum and the humerus
The sternum is medial to the humerus; the humerus is lateral to the sternum.
d. Heart and the Diaphragm
The heart is superior to the diaphragm while the diaphragm is inferior to the heart.
e. Knees and tibia
The knees are proximal to the tibia and the tibia is distal to the knees.
f. Liver and gallbladders
The liver is anterior to the gallbladder but the gallbladder is posterior to the liver.
g. Spleen and liver
The liver and spleen are contralateral.
h. Kidneys and small intestines
The small intestines are anterior to the kidneys while the kidneys are posterior to the small intestines.
i. 3rd and 5th digits
5th digit is medial to the 3rd digit and the 3rd digit is lateral to the 5th digit.
j. Sternum and thymus glands
The thymus gland is posterior to the sternum and the sternum is anterior to the thymus gland.