Upper/Lower Limb — Flashcards

Flashcard 51: The _____ nerve (L4-S3) provides: - sensory innervation to the sole of foot - motor innervation to the triceps surae (soleus), plantaris, popliteus, flexor muscles of the foot, and tibialis posterior

Answer: tibial

Flashcard 52: Muscles of the thenar eminence: 1. _____ 2. Abductor pollicis brevis 3. Flexor pollicis brevis

Answer: Opponens pollicis

Extra: The recurrent branch of the median nerve is purely motor. The main trunk of the median nerve provides sensory innervation to the lateral 3.5 digits and the palm. **Thenar muscles (OAF):** - **O**pponens pollicis - **A**bductor pollicis brevis - **F**lexor pollicis brevis (superficial head)

Flashcard 53: The _____ nerve travels with the posterior circumflex humeral artery around the surgical neck of the humerus

Answer: axillary

Flashcard 54: A lesion to #1 (upper trunk injury) would result in _____

Answer: Erb palsy ("waiter's tip")

Flashcard 55: _____ (distortion of the hand) is most apparent when extending fingers or at rest, and is due to a(n) distal ulnar nerve lesion

Answer: "Ulnar claw" hand

Flashcard 56: The thoracodorsal nerve provides motor innervation to the _____, which acts in shoulder extension, adduction, and internal rotation

Answer: latissimus dorsi

Flashcard 57: Sprains of the Anterior Talofibular Ligament are classified as a(n) _____ ankle sprain

Answer: low

Flashcard 58: Loss of the _____ in Erb palsy results in extension and pronation of the forearm

Answer: biceps brachii

Flashcard 59: Which lymph node cluster drains the posterior calf? _____

Answer: Popliteal

Flashcard 60: The lateral femoral cutaneous nerve is commonly injured (meralgia paresthetica) due to _____, _____ or _____

Answer: tight clothing