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 is contralateral to the right shoulder
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 inferior to the gallbladder
g. Spleen and liver - the spleen is posterior to the liver
h. Kidneys and small intestines - the kidneys are posterior to the small intestines
i. 3rd and 5th digits - the 3rd digit is distal to the 5th digit
j. Sternum and thymus glands - the sternum is posterior to the thymus glands