This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
Traction epiphysis is/are: 
Select and explain. 
A. Head of humerus, B. Lesser tubercle of humerus, C. Deltoid tuberosity, D. Coracoid process
B: Lesser tubercle of humerus
Answer: B: Lesser tubercle of humerus 
Explanation: Traction epiphysis are present at the ends of bones and develop due to traction by the attached muscles (and are therefore extracapsular), e.g.Greater (and lesser) tubercles in humerus and  greater (and lesser) trochanter in femur.
Pressure epiphysis are involved in weight transmission (and are intracapsular) for e.g. head of humerus and femur and condyles of humerus, femur, tibia etc.
Coracoid process in scapula is an example of atavistic epiphysis.
Deltoid tuberosity is not an epiphysis (it is present on the shaft/diaphysis).