Which directional terms can be used to specific the relationships between:
a. Elbow and shoulder: The elbow is distal to the shoulder. The shoulder is proximal to the elbow.
b. left and right shoulders: The left and right shoulders are contralateral to each other.
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. The diaphragm is inferior to the heart.
e. Knees and tibia: The knees are proximal to the tibia. The tibia is distal to the knees.
f. Liver and gallbladders: The liver is anterior to the gallbladder. The gallbladder is posterior to the liver.
g. Spleen and liver: The spleen and liver are contralateral to each other.
h. Kidneys and small intestines: The kidneys are posterior to the small intestines. The small intestines are anterior to the kidneys.
i. 3rd and 5th digits: The 3rd digits are lateral to the 5th digits. The 5th digits are medial to the 3rd digits.
j. Sternum and thymus glands: The sternum is anterior to the thymus gland. The thymus gland is posterior to the sternum.