Which directional terms can be used to specific the relationships between:
a. Elbow and shoulder - The elbow is distal to the shoulder.
b. left and right shoulders - The left shoulder and the right shoulder are contralateral.
c. Sternum and the humerus - The sternum is medial to the humerus.
d. Heart and the Diaphragm - The heart is superior to the diaphragm.
e. Knees and tibia - The knees are proximal to the tibia.
f. Liver and gallbladders - The liver is superior to the gallbladder.
g. Spleen and liver - The spleen is posterior to the liver.
h. Kidneys and small intestines - Kidneys are posterior to the small intestine.
i. 3rd and 5th digits - The 3rd and 5th digits are ipsilateral.
j. Sternum and thymus glands - The sternum is superficial to the thymus gland.