Bursae of the knee

1. What are the anterior bursa of the knee?
2. How is the prepatellar bursa inflamed?
3. How is the superficial infrapatellar bursa inflamed?
4. How many lateral bursae are there?
5. Where is the pes anserinus bursa located?
6. What is a Baker's cyst?

Answers:
1. Prepatellar bursa, suprapatellar bursa, deep infrapatellar bursa, and superficial infrapatellar bursa.
2. The prepatellar bursa is the most commonly damaged, caused by prolonged kneeling: housemaid's knee.
3. Associated with kneeling in an upright position: vicar's knee.
4. Three.
5. Located between the pes anserinus tendons and the MCL.
6. Distension of the bursa between the medial head of the gastrocnemius and the capsule, which is an outpocketing of the synovial membrane.