Question:
Which of the following statements about the menisci is not true?
Which of the following statements about the menisci is not true?
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The medial meniscus is tied to the MCL, so it is fixed and torn more often, not more mobile.
Updated On: Jun 24, 2026
- Medial meniscus is more mobile than lateral
- Lateral meniscus covers more tibial articular surface than medial
- Medial meniscus is more commonly injured than lateral
- Menisci are predominantly made up of type I collagen
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The Correct Option is A
Solution and Explanation
Step 1: The knee has two fibrocartilage menisci. Their mobility, coverage and injury rates are linked to how firmly each is anchored.
Step 2: The medial meniscus is C shaped and firmly attached at its periphery to the deep fibres of the tibial collateral ligament and the capsule. This tethering makes it relatively fixed and therefore less mobile. The lateral meniscus is more circular, is separated from the lateral collateral ligament, and has the popliteus tendon passing near it, so it is more mobile. Hence the statement that the medial meniscus is more mobile than the lateral is false.
Step 3: Because it is fixed and cannot slide out of the way of shear forces, the medial meniscus is the one more commonly torn, so option C is true. The more circular lateral meniscus covers a larger portion of its tibial plateau than the medial one covers of its plateau, so option B is true.
Step 4: Menisci are fibrocartilage and their dry weight is dominated by type I collagen, so option D is true. The single false statement is option A.
Answer: A. Medial meniscus is more mobile than lateral.
Step 2: The medial meniscus is C shaped and firmly attached at its periphery to the deep fibres of the tibial collateral ligament and the capsule. This tethering makes it relatively fixed and therefore less mobile. The lateral meniscus is more circular, is separated from the lateral collateral ligament, and has the popliteus tendon passing near it, so it is more mobile. Hence the statement that the medial meniscus is more mobile than the lateral is false.
Step 3: Because it is fixed and cannot slide out of the way of shear forces, the medial meniscus is the one more commonly torn, so option C is true. The more circular lateral meniscus covers a larger portion of its tibial plateau than the medial one covers of its plateau, so option B is true.
Step 4: Menisci are fibrocartilage and their dry weight is dominated by type I collagen, so option D is true. The single false statement is option A.
Answer: A. Medial meniscus is more mobile than lateral.
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