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T2 L10: Anatomy of the knee (CH)
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T2 L10: Anatomy of the knee (CH)

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@ProlificSynergy

Questions and Answers

Which of the following is NOT a movement that can occur at the knee joint?

  • Flexion
  • Adduction (correct)
  • Extension
  • Rotation

    • What are the main functions of the knee joint?

  • Abduction and circumduction
  • Rotation and adduction
  • Elevation and depression
  • Flexion and extension (correct)

    • Why is the knee joint frequently injured?

  • It lacks ligaments
  • It has limited mobility
  • It has excessive mobility (correct)
  • It lacks stability

    • Which of the following factors contribute to the stability of the knee joint?

    <p>Bony expansions and locking mechanism</p> Signup and view all the answers

    Which of the following is NOT a learning outcome for this lecture?

    <p>Describing the anatomy of the fibula</p> Signup and view all the answers

    What type of joint is the knee joint?

    <p>Synovial joint</p> Signup and view all the answers

    Which bones articulate to form the knee joint?

    <p>Femur and tibia</p> Signup and view all the answers

    Which side of the knee joint is shown in the provided image?

    <p>Medial side</p> Signup and view all the answers

    Which ligament prevents medial displacement of the tibia?

    <p>LCL</p> Signup and view all the answers

    Which ligament prevents lateral displacement of the tibia?

    <p>MCL</p> Signup and view all the answers

    Which ligament is more attached to the knee joint and attaches onto the medial meniscus?

    <p>MCL</p> Signup and view all the answers

    Which ligament is named according to where it comes off of the tibia and crosses over the other ligament?

    <p>ACL</p> Signup and view all the answers

    Which ligament prevents the tibia from moving anteriorly on the femur?

    <p>ACL</p> Signup and view all the answers

    Which ligament prevents the tibia from moving too much posteriorly on the femur?

    <p>PCL</p> Signup and view all the answers

    What is the function of the cruciate ligaments?

    <p>To prevent anterior and posterior displacement of the tibia</p> Signup and view all the answers

    Which ligament is commonly sprained or torn in sports injuries?

    <p>ACL</p> Signup and view all the answers

    Which ligament is responsible for providing stability on the lateral side of the knee?

    <p>Lateral collateral ligament</p> Signup and view all the answers

    What is the medical term for a bowlegged deformity?

    <p>Genu varum</p> Signup and view all the answers

    Which angle decreases when the tibia is displaced medially?

    <p>Q angle</p> Signup and view all the answers

    What can happen if the tibia is displaced laterally?

    <p>Increased stress on the lateral side of the knee</p> Signup and view all the answers

    What are the three factors that influence the locking mechanism of the knee joint?

    <p>The shape of the joint, rotation of the femur, and the position of the center of gravity</p> Signup and view all the answers

    What is the purpose of the medial rotation of the femur in the knee joint?

    <p>To keep the knee in a locked position</p> Signup and view all the answers

    What is the femoral angle, also known as the Q angle, used to measure?

    <p>The angle between the anatomical axis and the mechanical axis of the femur</p> Signup and view all the answers

    Why is the abducted femur important for weight bearing?

    <p>It positions the knee joint underneath the pelvis</p> Signup and view all the answers

    Which of the following is the correct definition of the term 'meniscus' in the context of the text?

    <p>A type of cartilage in the knee joint</p> Signup and view all the answers

    What is the purpose of the meniscus in the knee joint?

    <p>To deepen the joint</p> Signup and view all the answers

    Which part of the tibia is known as the 'tibial plateau'?

    <p>The flattened part of the tibia where the femoral condyles sit on</p> Signup and view all the answers

    What is the plural form of 'meniscus'?

    <p>Menisci</p> Signup and view all the answers

    Which of the following is NOT a role of the meniscus?

    <p>Connecting the femoral condyles and tibial plateau</p> Signup and view all the answers

    What is the tibial condyle?

    <p>A part of the tibial plateau</p> Signup and view all the answers

    Which of the following is NOT a function of the knee joint?

    <p>Rotation</p> Signup and view all the answers

    Which of the following is NOT a bony expansion of the knee joint?

    <p>Medial epicondyle</p> Signup and view all the answers

    Which factor contributes to reducing the amount of energy required when the knee joint is extended?

    <p>Shape of femur</p> Signup and view all the answers

    Which ligament prevents lateral displacement of the tibia?

    <p>Lateral collateral ligament</p> Signup and view all the answers

    What is the purpose of the menisci in the knee joint?

    <p>To absorb shock</p> Signup and view all the answers

    Which ligament prevents the tibia from moving too much posteriorly on the femur?

    <p>Posterior cruciate ligament</p> Signup and view all the answers

    Which of the following is NOT a factor that strengthens the knee joint?

    <p>Locking mechanism</p> Signup and view all the answers

    What type of joint is the knee joint?

    <p>Synovial hinge joint</p> Signup and view all the answers

    Which ligament is responsible for providing stability on the lateral side of the knee?

    <p>Lateral collateral ligament</p> Signup and view all the answers

    Which of the following is NOT a common cause of knee injury?

    <p>Excessive flexibility</p> Signup and view all the answers

    What muscle is responsible for medially rotating the leg at the knee joint when the knee is flexed?

    <p>Semitendinosus</p> Signup and view all the answers

    Which ligament passes through the joint capsule and the space under the lateral collateral ligament?

    <p>Popliteus</p> Signup and view all the answers

    What is the function of the infrapatellar fat pad in relation to the synovial membrane?

    <p>It separates the synovial membrane from the patellar ligament</p> Signup and view all the answers

    Which bursa is commonly inflamed due to repetitive movements or direct pressure?

    <p>Prepatellar bursa</p> Signup and view all the answers

    What is the cause of a Baker's (Popliteal) Cyst?

    <p>Herniation of the bursa</p> Signup and view all the answers

    Which artery supplies blood to the knee joint through genicular branches?

    <p>Popliteal artery</p> Signup and view all the answers

    What is the term for the abnormal fluid filled sacs in the popliteal fossa?

    <p>Baker's (Popliteal) Cyst</p> Signup and view all the answers

    What is the function of the synovial membrane in relation to the cruciate ligaments?

    <p>It cuffs the anterior surface of the cruciate ligaments</p> Signup and view all the answers

    What is the primary function of the iliotibial tract in relation to the knee joint?

    <p>To provide stability on the lateral side of the knee</p> Signup and view all the answers

    What is the main factor that contributes to the stability of the knee joint?

    <p>The medial rotation of the femur</p> Signup and view all the answers

    Which ligament is the primary stabilizer of the knee joint when the knee is flexed?

    <p>Posterior cruciate ligament</p> Signup and view all the answers

    What is the medical term for the deformity characterized by an increase in the Q angle and lateral displacement of the tibia?

    <p>Genu valgum</p> Signup and view all the answers

    Which ligament prevents medial displacement of the tibia and is attached to the medial meniscus?

    <p>Medial collateral ligament</p> Signup and view all the answers

    What is the purpose of the menisci in the knee joint?

    <p>To deepen the articulating surfaces and act as shock absorbers</p> Signup and view all the answers

    Which ligament prevents lateral displacement of the tibia?

    <p>Lateral collateral ligament</p> Signup and view all the answers

    What is the function of the anterior cruciate ligament (ACL)?

    <p>To prevent anterior displacement of the tibia on the femur</p> Signup and view all the answers

    What is the purpose of the medial rotation of the leg in the knee joint?

    <p>To tighten the ligaments and limit rotation</p> Signup and view all the answers

    What is the correct definition of the term 'meniscus' in the context of the text?

    <p>Crescent-shaped plates of fibrocartilage that deepen the articulating surfaces and act as shock absorbers</p> Signup and view all the answers

    Which ligament is commonly injured in sports injuries and is known as the 'unhappy triad'?

    <p>Anterior cruciate ligament</p> Signup and view all the answers

    What is the purpose of the iliotibial tract in the knee joint?

    <p>To stabilize the extended knee</p> Signup and view all the answers

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