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 (D)</p> Signup and view all the answers

Which muscle does NOT originate from the ischial tuberosity?

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

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

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

Which nerve innervates the biceps femoris muscle?

<p>Common peroneal nerve (short head) (B), Tibial nerve (long head) (C)</p> Signup and view all the answers

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

<p>Semimembranosus (A)</p> Signup and view all the answers

What structures form the floor of the popliteal fossa?

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

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

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

What is the function of the popliteal fascia?

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

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

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

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

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

The popliteal artery divides into which two arteries?

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

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

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

Where do the tendons that form the pes anserinus insert?

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

Which nerve innervates the semitendinosus muscle?

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

What is the primary origin point for all hamstring muscles?

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

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

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

What structure is primarily found in the popliteal fossa?

<p>Popliteal artery and vein (A)</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 (B)</p> Signup and view all the answers

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

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

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

<p>Biceps femoris and semitendinosus muscles (B)</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. (D)</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. (A)</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 (D)</p> Signup and view all the answers

Which two main arteries arise from the popliteal artery?

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

Where does the small saphenous vein ultimately drain?

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

What forms the floor of the popliteal fossa?

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

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