Knee Anatomy and Function Quiz
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Knee Anatomy and Function Quiz

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@HappierMandolin

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Questions and Answers

Which of the following nerves is derived from L3, 4, 5, S1, 2?

  • pudendal nerve
  • sciatic nerve (correct)
  • nerve to obturator internus
  • superior gluteal nerve
  • Which statement about the inferior gluteal artery is incorrect?

  • It is located in the posterior pelvis.
  • It is a branch of the internal iliac artery.
  • It runs deep to the gluteus medius muscle. (correct)
  • It supplies the gluteus maximus muscle.
  • Which of the following options does not correctly describe the hamstring compartment?

  • The long head of biceps arises from the lateral facet of the ischial tuberosity.
  • The cutaneous nerve supply is from the posterior circumflex femoral nerve.
  • The oblique popliteal ligament is an expansion of biceps femoris.
  • Semitendinosus lies superficial to semimembranosus. (correct)
  • Which nerve is not associated with the sciatic nerve?

    <p>femoral nerve</p> Signup and view all the answers

    Which nerve is responsible for supplying the tensor fasciae latae?

    <p>Superior gluteal nerve</p> Signup and view all the answers

    Which statement about lymphatic drainage of the lower limb is correct?

    <p>The distal nodes of the superficial group receive all the superficial lymphatics of the lower limb.</p> Signup and view all the answers

    Which of the following is NOT a characteristic of fascia lata?

    <p>Attached inferiorly to the head of the fibula.</p> Signup and view all the answers

    Which structure is intrasynovial at the knee joint?

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

    What initiates the 'screw-home' movement during knee extension?

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

    Which muscle is NOT found in the floor of the femoral triangle?

    <p>adductor magnus</p> Signup and view all the answers

    Which statement about the tibialis anterior is correct?

    <p>Tendon perforates the superior extensor retinaculum</p> Signup and view all the answers

    Which statement about the iliotibial tract is correct?

    <p>Is attached superiorly to the iliac crest.</p> Signup and view all the answers

    Which statement about the adductor canal is true?

    <p>Ends distally in the adductor longus hiatus</p> Signup and view all the answers

    What is the correct statement regarding the great saphenous vein?

    <p>Travels with the saphenous nerve along its course</p> Signup and view all the answers

    Concerning the femoral artery, which statement is accurate?

    <p>The femoral vein is always on its medial side</p> Signup and view all the answers

    What is a true statement about the adductor compartment?

    <p>The hamstring part of adductor magnus is supplied by the tibial part of the sciatic nerve</p> Signup and view all the answers

    Study Notes

    Nerve Supply and Muscular Functions

    • Tensor fasciae latae is mainly supplied by the superior gluteal nerve.
    • Anterior cruciate ligament tightens during the 'screw-home' mechanism when extending the knee.
    • Tibialis anterior is innervated by the deep peroneal nerve and is not supplied by the tibial nerve.

    Knee Joint Anatomy

    • Intrasynovial structures in the knee joint do not include the oblique popliteal ligament, the tendon of popliteus, or the menisci; the anterior cruciate ligament is also not intrasynovial.
    • The knee joint's 'screw-home' movement involves the anterior cruciate ligament.

    Adductor Canal

    • Located in the thigh, the adductor canal contains the femoral artery and saphenous nerve.
    • The canal does not contain muscular nerves and has adductor longus forming its roof.

    Veins and Lymphatics

    • The great saphenous vein joins the femoral vein inferior to the inguinal ligament and travels with the saphenous nerve.
    • Superficial inguinal nodes consist of about 15 nodes that drain lymph from the lower limb.

    Femoral Artery Anatomy

    • The profunda femoris artery arises from the anteromedial aspect of the femoral artery and supplies deep structures of the thigh.
    • The medial circumflex femoral artery is key in the trochanteric anastomosis along with the superior and inferior gluteal arteries.

    Muscles and Bursae

    • Gluteus maximus forms the gluteal fold, comprises four bursae beneath it, and primarily receives blood from the inferior gluteal artery.
    • In the hamstring compartment, semitendinosus lies superficial to semimembranosus, and the long head of biceps femoris arises from the lateral facet of ischial tuberosity.

    Fascia and Tracts

    • Fascia lata attaches inferiorly to tibial condyles and head of the fibula, continuous below and reinforced by quadriceps tendon.
    • The iliotibial tract lies lateral to tensor fascia latae and attaches superiorly to the iliac crest.

    Femoral Triangle Components

    • Muscles in the floor of the femoral triangle include iliacus, psoas, and pectineus, while adductor magnus is not present in this region.

    Miscellaneous

    • The sciatic nerve passes down deep to muscles like quadratus femoris and piriformis; it separates into tibial and common peroneal components near the hip joint.
    • The medial intermuscular septum separates the adductor compartment from the posterior compartment of the thigh.

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    Description

    Test your knowledge on the anatomy of the knee joint and its associated structures. This quiz covers topics such as nerve supply and the mechanics of knee extension. Get ready to challenge yourself on key concepts in knee physiology!

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