Which directional terms can be used to specify the relationships between:
a. Elbow and Shoulder: The elbow is DISTAL to the shoulder whilst 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 whilst the humerus is LATERAL to the sternum.
d. Heart and the Diaphragm: The heart is SUPERIOR to the diaphragm whilst the diaphragm is INFERIOR to the heart.
e. Knees and Tibia: The knees are PROXIMAL to the tibia whilst the tibia is DISTAL to the knees.
f. Liver and Gallbladders: The liver is ANTERIOR to the gallbladder whilst the gallbladder is POSTERIOR to the liver.
g. Spleen and Liver: The spleen and liver are CONTRALATERAL.
h. Kidneys and Small Intestines: The kidneys are POSTERIOR to the small intestines whilst the small intestines are ANTERIOR to the kidneys.
i. 3rd and 5th Digits: The 3rd digit is LATERAL to the 5th digit whilst the 5th digit is MEDIAL to the 3rd digit.
j. Sternum and Thymus Glands: The sternum is ANTERIOR to the thymus glands whilst the thymus glands are POSTERIOR to the sternum.