This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Acute Dislocation of Patella or Knee, Subject name: Orthopaedics
House maids knee is bursitis of: 
Select and explain. 
A. Prepatellar bursa, B. Infrapatellar bursa, C. Olecranon, D. Ischial bursa
A: Prepatellar bursa
Answer: A: Prepatellar bursa 
Explanation: Ans. is 'a' i.e. Prepatellar bursa Common bursitisClergyman's knee*-infrapatellar bursitisHousemaid's knee*-Prepatellar bursaStudent's elbow *-Olecranon bursitisWeaver's bottom*-ischial bursitisTailor's ankle*-on lateral ankleBunion*-on great toe