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Extremity Anatomy Flashcards

7 cards from real CCEP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Extremity Anatomy flashcards as text

  1. The dorsal scapular nerve innervates which muscles?

    Answer: Rhomboid major, rhomboid minor, and levator scapulae

    The dorsal scapular nerve (C5) innervates the rhomboid major, rhomboid minor, and levator scapulae, retracting and rotating the scapula.

  2. At the hip, the zona orbicularis is best described as:

    Answer: Circular fibers of the hip joint capsule encircling the femoral neck

    The zona orbicularis consists of circular capsular fibers that form a collar around the femoral neck, helping to retain the femoral head in the acetabulum.

  3. The medial patellofemoral ligament (MPFL) originates from which bony landmark?

    Answer: Adductor tubercle

    The MPFL originates from the adductor tubercle region of the medial femoral condyle and inserts on the superomedial patella, acting as the primary restraint to lateral patellar displacement.

  4. Which intrinsic foot muscle is responsible for abducting the fifth toe?

    Answer: Abductor digiti minimi

    The abductor digiti minimi originates from the calcaneal tuberosity and inserts on the base of the proximal phalanx of the fifth toe, abducting it.

  5. The thoracic outlet syndrome compresses which structures as they pass between the clavicle and first rib?

    Answer: Brachial plexus and subclavian artery and/or vein

    Thoracic outlet syndrome involves compression of the brachial plexus and/or subclavian vessels (artery and/or vein) as they traverse the costoclavicular space.

  6. Which structure forms the 'floor' of the carpal tunnel?

    Answer: Carpal bones (proximal and distal rows)

    The floor (dorsal wall) of the carpal tunnel is formed by the concave arrangement of the carpal bones, while the roof is the flexor retinaculum.

  7. The obturator nerve (L2-L4) exits the pelvis through the obturator foramen and primarily innervates which muscle group?

    Answer: Hip adductors

    The obturator nerve innervates the medial compartment hip adductors: adductor longus, adductor brevis, adductor magnus (adductor portion), gracilis, and obturator externus.