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  • Question 1 - Compression of this nerve can cause weakness in the left leg while walking...

    Incorrect

    • Compression of this nerve can cause weakness in the left leg while walking and thigh adduction weakness at the hip joint.

      Your Answer: Inferior gluteal nerve

      Correct Answer: Obturator nerve

      Explanation:

      The obturator nerve is a sensory and motor nerve that emerges from the lumbar plexus and innervates the thigh.

      This nerve supplies motor innervation to the medial compartment of the thigh, making it necessary for thigh adduction.

    • This question is part of the following fields:

      • Anatomy
      • Lower Limb
      1
      Seconds
  • Question 2 - Regarding the lumbar plexus, which of the following is a direct muscular branch?...

    Incorrect

    • Regarding the lumbar plexus, which of the following is a direct muscular branch?

      Your Answer:

      Correct Answer: Nerve to quadratus lumborum

      Explanation:

      The lumbar plexus gives rise to several branches which supply various muscles and regions of the posterior abdominal wall and lower limb. These branches include the Iliohypogastric, ilioinguinal, genitofemoral, lateral femoral cutaneous, femoral and obturator nerves.

      In addition, the lumbar plexus gives off muscular branches from its roots, a branch to the lumbosacral trunk and occasionally an accessory obturator nerve.

    • This question is part of the following fields:

      • Anatomy
      • Lower Limb
      0
      Seconds
  • Question 3 - An injury to which nerve affects innervation to the adductor portion of the...

    Incorrect

    • An injury to which nerve affects innervation to the adductor portion of the adductor magnus?

      Your Answer:

      Correct Answer: Posterior branch of the obturator nerve

      Explanation:

      The nerves that supply the adductor magnus muscle have an embryologic origin from the anterior divisions of the lumbosacral plexus and include the obturator nerve, posterior division (L2-4), and the tibial portion of the sciatic nerve (L4). It is innervated by the posterior division of the obturator nerve.

    • This question is part of the following fields:

      • Anatomy
      • Lower Limb
      0
      Seconds
  • Question 4 - Which of the following muscles inserts into the patella? ...

    Incorrect

    • Which of the following muscles inserts into the patella?

      Your Answer:

      Correct Answer: The quadriceps femoris complex

      Explanation:

      The quadriceps femoris muscle translates to “four-headed muscle” from Latin. It bears this name because it consists of four individual muscles; rectus femoris, vastus medialis, vastus lateralis, and vastus intermedius. Out of all four muscles, only the rectus femoris crosses both the hip and knee joints. The others cross only the knee joint. These muscles differ in their origin, but share a common quadriceps femoris tendon which inserts into the patella. The function of the quadriceps femoris muscle is to extend the leg at the knee joint and to flex the thigh at the hip joint.

    • This question is part of the following fields:

      • Anatomy
      • Lower Limb
      0
      Seconds
  • Question 5 - Which of the following nerves innervates the gastrocnemius muscle? ...

    Incorrect

    • Which of the following nerves innervates the gastrocnemius muscle?

      Your Answer:

      Correct Answer: Tibial nerve

      Explanation:

      The gastrocnemius is innervated by the anterior rami of S1 and S2 spinal nerves, carried by the tibial nerve into the posterior compartment of the leg.

    • This question is part of the following fields:

      • Anatomy
      • Lower Limb
      0
      Seconds
  • Question 6 - Regarding an avulsion fracture, a sudden contraction of which muscle may lead to...

    Incorrect

    • Regarding an avulsion fracture, a sudden contraction of which muscle may lead to fracture of the head of the fibula?

      Your Answer:

      Correct Answer: Biceps femoris

      Explanation:

      Avulsion fractures of the fibular head are rare and are so-called the arcuate signal. The “arcuate signal” is used to describe an avulsed bone fragment related to the insertion site of the tendon of the biceps femoris associated with the arcuate complex, which consists of the fabellofibular, popliteofibular, and arcuate ligaments. Such lesions are typically observed in direct trauma to the knee with excessive varus and internal rotation forces or indirect trauma with the same direction of the force.

    • This question is part of the following fields:

      • Anatomy
      • Lower Limb
      0
      Seconds
  • Question 7 - Aside from the inability to extend the leg above the knee, which of...

    Incorrect

    • Aside from the inability to extend the leg above the knee, which of the following clinical symptoms should you anticipate seeing in a patient who had a pelvic and right leg injury as well as femoral nerve damage?

      Your Answer:

      Correct Answer: Loss of sensation over the anterior thigh

      Explanation:

      The femoral nerve runs down the front of the leg from the pelvis. It gives the front of the thigh and a portion of the lower leg sensation.

      Extension of the leg at the knee joint, flexion of the thigh at the hip are produced by muscles that is primarily innervated by the femoral nerve.

    • This question is part of the following fields:

      • Anatomy
      • Lower Limb
      0
      Seconds
  • Question 8 - The extensor digitorum longus is supplied by which nerve? ...

    Incorrect

    • The extensor digitorum longus is supplied by which nerve?

      Your Answer:

      Correct Answer: Deep peroneal nerve

      Explanation:

      The extensor digitorum longus is innervated by the deep fibular nerve (L5, S1), a branch of the common fibular nerve.

    • This question is part of the following fields:

      • Anatomy
      • Lower Limb
      0
      Seconds
  • Question 9 - Which of the following nerves supplies innervation to the extensor hallucis longus? ...

    Incorrect

    • Which of the following nerves supplies innervation to the extensor hallucis longus?

      Your Answer:

      Correct Answer: Deep peroneal nerve

      Explanation:

      Extensor hallucis longus is innervated by the deep fibular nerve (root value L5 and S1).

    • This question is part of the following fields:

      • Anatomy
      • Lower Limb
      0
      Seconds
  • Question 10 - A 25-year-old athlete suffers an injury to the nerve that innervates the gluteus...

    Incorrect

    • A 25-year-old athlete suffers an injury to the nerve that innervates the gluteus minimus muscle.

      Which of the following nerves innervates the gluteus minimus muscle?

      Your Answer:

      Correct Answer: Superior gluteal nerve

      Explanation:

      Gluteus minimus is the smallest muscle of the glutei. It is located just beneath the gluteus medius muscle. Gluteus minimus predominantly acts as a hip stabilizer and abductor of the hip.
      The superior gluteal nerve innervates the gluteus minimus.

    • This question is part of the following fields:

      • Anatomy
      • Lower Limb
      0
      Seconds

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