Anatomy of the Posterior Thigh and Knee
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Questions and Answers

Which nerve is responsible for the sensory innervation of the posterior thigh?

  • Tibial nerve
  • Posterior femoral cutaneous nerve (correct)
  • Medial femoral cutaneous nerve
  • Lateral femoral cutaneous nerve
  • What is the common origin for the hamstring muscles?

  • Ischial tuberosity (correct)
  • Greater trochanter
  • Lesser trochanter
  • Anterior superior iliac spine (ASIS)
  • Which muscle acts as a flexor of the knee and is also involved in extending the thigh?

  • Biceps femoris (correct)
  • Sartorius
  • Tensor fasciae latae
  • Semitendinosus
  • What is the function of the tensor fasciae latae muscle?

    <p>Flexion and medial rotation of the thigh</p> Signup and view all the answers

    Which muscle does NOT originate from the ischial tuberosity?

    <p>Biceps femoris (short head)</p> Signup and view all the answers

    What structures form the pes anserinus at the medial side of the tibia?

    <p>Gracilis, sartorius, semitendinosus</p> Signup and view all the answers

    Which nerve innervates the biceps femoris muscle?

    <p>Common peroneal nerve (short head)</p> Signup and view all the answers

    Which muscle contributes to the formation of the oblique popliteal ligament?

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

    What structures form the floor of the popliteal fossa?

    <p>Popliteal surface of femur and popliteus fascia</p> Signup and view all the answers

    The small saphenous vein is formed as a continuation of which vein?

    <p>Lateral marginal vein of the foot</p> Signup and view all the answers

    Which artery is primarily responsible for supplying the knee joint and forms genicular anastomoses?

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

    What is the function of the popliteal fascia?

    <p>To protect neurovascular structures</p> Signup and view all the answers

    Which nerve does NOT arise from the sciatic nerve in the popliteal fossa?

    <p>Deep fibular nerve</p> Signup and view all the answers

    Which muscle forms the superior lateral boundary of the popliteal fossa?

    <p>Biceps femoris</p> Signup and view all the answers

    The popliteal artery divides into which two arteries?

    <p>Anterior and posterior tibial arteries</p> Signup and view all the answers

    What is the role of lymph nodes within the popliteal fossa?

    <p>To filter and drain lymphatic fluid</p> Signup and view all the answers

    What is the primary action of the tensor fasciae latae muscle during leg movement?

    <p>Abducts and medially rotates the thigh</p> Signup and view all the answers

    Which of the following muscles does NOT belong to the hamstring group?

    <p>Tensor fasciae latae</p> Signup and view all the answers

    Where do the tendons that form the pes anserinus insert?

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

    Which nerve innervates the semitendinosus muscle?

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

    What is the primary origin point for all hamstring muscles?

    <p>Ischial tuberosity</p> Signup and view all the answers

    Which muscle is primarily responsible for extending the thigh during walking?

    <p>Biceps femoris</p> Signup and view all the answers

    What structure is primarily found in the popliteal fossa?

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

    Which of the following actions do the hamstring muscles perform?

    <p>Extend the thigh and flex the knee</p> Signup and view all the answers

    Which structures are found in the contents of the popliteal fossa?

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

    What forms the boundaries of the popliteal fossa laterally and medially?

    <p>Biceps femoris and semitendinosus muscles</p> Signup and view all the answers

    Which statement accurately describes the popliteal vein?

    <p>It is formed by the union of anterior and posterior tibial veins.</p> Signup and view all the answers

    What is the function of the genicular arteries in the knee region?

    <p>They participate in the formation of genicular anastomoses.</p> Signup and view all the answers

    Which nerve is responsible for providing sensory innervation to the lateral side of the leg and ankle?

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

    Which two main arteries arise from the popliteal artery?

    <p>Anterior and posterior tibial arteries</p> Signup and view all the answers

    Where does the small saphenous vein ultimately drain?

    <p>Into the popliteal vein</p> Signup and view all the answers

    What forms the floor of the popliteal fossa?

    <p>Popliteal surface of femur and oblique popliteal ligament</p> Signup and view all the answers

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