Which directional terms can be used to specific the relationships between:
a. elbow distal to shoulder
b. left shoulder contralateral to right shoulder
c. sternum medial to humerus
d. heart superior to the diaphragm
e. knees proximal to tibia
f. liver superior to gallbladder
g. spleen contralateral to liver
h. kidneys posterior to small intestines
i. 3rd digit lateral to 5th digit
j. sternum anterior or superficial to thymus glands