Human Anatomy LM Notebook Review - Thigh, Leg, Foot, Brachial Plexus
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Questions and Answers

Which muscle is primarily responsible for toe extension in the anterior compartment?

  • Gastrocnemius
  • Fibularis tertius
  • Flexor digitorum longus
  • Extensor hallucis longus (correct)
  • What is the primary action associated with the muscles in the lateral compartment?

  • Dorsiflexion
  • Plantarflexion
  • Inversion
  • Eversion (correct)
  • Which nerve is responsible for innervating the anterior compartment of the lower leg?

  • Superficial fibular nerve
  • Deep fibular nerve (correct)
  • Common fibular nerve
  • Tibial nerve
  • Which artery supplies blood to the anterior compartment of the lower leg?

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

    What condition is associated with compression of structures in the tarsal tunnel?

    <p>Tarsal tunnel syndrome</p> Signup and view all the answers

    What is NOT a boundary of the femoral triangle?

    <p>Rectus femoris muscle</p> Signup and view all the answers

    Which muscle is NOT affected by weakness in knee extension?

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

    What change occurs to the femoral artery as it passes through the adductor hiatus?

    <p>It becomes the popliteal artery.</p> Signup and view all the answers

    What is the innervation of the short head of biceps femoris?

    <p>Common fibular division of the sciatic nerve</p> Signup and view all the answers

    Which muscle contributes to both hip extension and knee flexion?

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

    What is the primary compartment supplied by the profunda femoral artery?

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

    Which of the following structures is NOT contained within the femoral triangle?

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

    Which of the following best describes the Q-angle?

    <p>The angle formed by the line of the quadriceps and patellar ligament</p> Signup and view all the answers

    What are the primary functions of the sartorius muscle?

    <p>Flexes, abducts, and laterally rotates the thigh at the hip joint</p> Signup and view all the answers

    Which artery is responsible for providing blood supply specifically to the foveal artery?

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

    What movements are primarily permitted by the talocrural joint?

    <p>Dorsiflexion and plantar flexion</p> Signup and view all the answers

    Which of the following describes the position of the adductor canal?

    <p>Deep to the sartorius muscle and between adductor longus and vastus medialis</p> Signup and view all the answers

    What is the angle of torsion in a normal adult femur?

    <p>12 to 15 degrees</p> Signup and view all the answers

    Which nerve innervates the medial compartment muscles of the thigh?

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

    In which condition is the angle of inclination less than normal, approaching a right angle?

    <p>Coxa vara</p> Signup and view all the answers

    What function does the anterior talofibular ligament (ATFL) primarily serve?

    <p>Resists inversion of the foot</p> Signup and view all the answers

    What is the primary role of the medial compartment muscles of the thigh?

    <p>Thigh adduction</p> Signup and view all the answers

    Which artery does NOT branch from the second part of the axillary artery?

    <p>Superior thoracic artery</p> Signup and view all the answers

    What is the primary action of the tibialis posterior tendon in relation to the foot's anatomy?

    <p>Lifting and stabilizing the medial longitudinal arch</p> Signup and view all the answers

    Which muscle is involved in the second layer of plantar foot muscles?

    <p>Quadratus plantae</p> Signup and view all the answers

    What distinguishes the medial longitudinal arch from the lateral longitudinal arch?

    <p>The medial arch is higher and more prominent than the lateral arch.</p> Signup and view all the answers

    Which artery primarily provides blood supply to the dorsum of the foot?

    <p>Dorsalis pedis artery</p> Signup and view all the answers

    Which of the following is a symptom of tarsal tunnel syndrome?

    <p>Numbness and tingling on the plantar surface</p> Signup and view all the answers

    What contributes to the compartmentalization of the lower leg?

    <p>Thick fascia layers</p> Signup and view all the answers

    Why is a fracture of the talus considered high-risk for complications?

    <p>It has limited blood supply and is covered by avascular cartilage.</p> Signup and view all the answers

    What changes occur in the joint movements during supination of the foot?

    <p>Plantarflexion and inversion at the subtalar joint</p> Signup and view all the answers

    Which structure primarily supports the lateral longitudinal arch?

    <p>Long plantar ligament</p> Signup and view all the answers

    Which nerve's injury would most likely result in sensory loss on the plantar surface of the foot?

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

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