Anatomy Answer 9
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Answer:4. is intasynovialReview:
Posterior cruciate Ligament:
- is stronger, but shorter and less oblique in its direction, than the anterior.
- It is attached to the posterior intercondyloid fossa of the tibia, and to the posterior extremity of the lateral meniscus;
- and passes upward, forward, and medialward, to be fixed into the lateral and front part of the medial condyle of the femur.
- During flexion, the ligamentum patellæ is put upon the stretch, and in extreme flexion the posterior cruciate ligament, the oblique popliteal, and collateral ligaments, and, to a slight extent, the anterior cruciate ligament, are relaxed.
- The main function of the cruciate ligament is to act as a direct bond between the tibia and femur and to prevent the former bone from being carried too far backward or forward.( i.e prevent anterior or posterior dislocation)
They are covered by a fold of synovial membrane that resembles a mesentery incompletely dividing the knee joint in the sagittal plane.
Anatomic studies have not adequately examined the synovial reflections around the cruciate ligaments with regard to whether the anterior cruciate ligament and the posterior cruciate ligament have separate synovial sheaths or a single sheath that envelopes them within the same extrasynovial space.
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Category: AIIMS Nov 2006 MCQs
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