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FA MSK Anatomy
| Question | Answer |
|---|---|
| List the epidermal layers from surface to base. | Californians Like Girls in String Bikinis stratum Corneum, stratum Lucidum, stratum Granulosum, stratum Spinosum, stratum Basalis |
| Which part of the epithelial cell junction functions as to : Prevent diffusion across paracellular space | Zona Occludens (tight junction) |
| Which part of the epithelial cell junction : Lies just basal to the tight junction | Zona Adherens |
| Which part of the epithelial cell junction whose cadherins connect to : a) Actin b) Intermediate filaments | a) Zona Adherens b) Macula adherens (desmosome) |
| Which part of the epithelial cell junction functions as to : allow adjacent cells to communicate for electric and metabolic junctions | Gap junction |
| Which part of the cell structure functions to connect cells to underlying matrix? | Hemi-Desmosome |
| List the structures teared in "unhappy triad" knee injury. | Medial collateral ligament (MCL), Medial meniscus, and Anterior Cruciate Ligament (ACL) |
| Positive anterior drawer sign indicates tearing of what structure? | ACL (Anterior Cruciate Ligament) |
| Which shoulder rotator cuff muscle functions to : Help deltoid abduct arm | Supra-spinatus |
| Which shoulder rotator cuff muscle functions to : Laterally rotate arm | Infra-Spinatus |
| Which shoulder rotator cuff muscle functions to : Adduct and laterally rotate arm | Teres minor |
| Which shoulder rotator cuff muscle functions to : Medially rotate and adduct arm | Sub-Scapularis |
| Which nerve is affected in : Fractured surgical neck of humerus | Axillary nerve |
| Which nerve is affected in : Dislocation of humeral head | Axillary nerve and/or Radial nerve |
| Which nerve is affected in : Fracture at midhshaft of humerus | Radial nerve |
| Which nerve is affected in : Compression of axilla by back of chair or crutches | Radial nerve |
| Which nerve is affected in : Fracture of supra-condylar humerus | Median nerve (proximal lesion symptoms) |
| Which nerve is affected in : Carpal tunnel syndrome | Median nerve (distal lesion symptoms) |
| Which nerve is affected in : Dislocated lunate | Median nerve (distal lesion symptoms) |
| Which nerve is affected in : Fracture of medial epicondyle of humerus | Ulnar nerve (proximal lesion symptoms) |
| Which nerve is affected in : Fracture of hook of hamate (falling onto outstretched hand) | Ulnar nerve (distal lesion symptoms) |
| Which nerve is affected in : Upper trunk compression | Musculo-Cutaneos nerve |
| Which carpal bone is most commonly fractured? What complication does it lead to? | Scaphoid, leading to avascular necrosis in the proximal head of scaphoid |
| Which carpal bone is most commonly dislocated? What complication does it lead to? | Lunate, leading to Carpal Tunnel Syndrome due to compression of the Median Nerve. |
| Which nerve is injured if there is loss of : Arm abduction at shoulder | Axillary nerve |
| Which nerve is injured if there is loss of : Sensation over deltoid muscle | Axillary nerve |
| Which nerve is injured if there is loss of : Wrist extension, finger extension at MCP joints, supination, and thumb extension and abduction. | Radial nerve |
| Which nerve is injured if there is loss of : Sensation over posterior arm and dorsal hand and dorsal thumb | Radial nerve |
| Which nerve is injured if there is loss of : Opposition of thumb | (Proximal) Median nerve |
| Which nerve is injured if there is loss of : Lateral finger flexion, and wrist flexion to lateral side | (Distal) Median nerve |
| Which nerve is injured if there is loss of : Medial finger flexion, and wrist flexion to medial side | (Proximal) Ulnar nerve |
| Which nerve is injured if there is loss of : Abduction and adduction of fingers, adduction of thumb, and extension of 4th and 5th fingers | (Distal) Ulnar nerve |
| Which nerve is injured if there is loss of : Sensation of the dorsal and palmar aspects of lateral 3 1/2 fingers and thenar eminence | Median nerve |
| Which nerve is injured if there is loss of : Flexion of arm at elbow | Musculo-cutaneous |
| Which nerve is injured if there is loss of : Sensation at lateral forearm | Musculo-cutaneous |
| What lesion would present as : Ulnar claw (when asked to straighten fingers) | Distal Ulnar nerve lesion |
| What lesion would present as : Median claw | Distal Median nerve lesion |
| What lesion would present as : Ape hand | Proximal Median nerve lesion |
| What lesion would present as : Klumpke's total hand claw | Lesion of lower trunk (C8-T1) of brachial plexus |
| What lesion would present as : Lateral deviation of wrist upon wrist flexion | Proximal Ulnar nerve lesion |
| What lesion would present as : Wrist drop | Radial nerve lesion |
| What lesion would present as : Medial deviation of wrist upon wrist flexion | Distal Median nerve lesion |
| What lesion would present as : Limb hangs by side, medially rotated, and forearm is pronated | Erb-Duchenne palsy ("waiter's tip). Lesion to the upper trunk of the brachial plexus (C5-C6 roots), usually follows blow to the shoulder or trauma during delivery |
| List the muscles that the Radial nerve innervates. | (known as the "great extensor nerve") BEST Brachio-radialis, Extensors of the wrist and fingers, Supinator, and Triceps |
| List the Thenar muscles. | Oppose, Abduct, Flex Opponens pollicis, Abductor pollicis brevis, Flexor pollicis brevis |
| List the Hypothenar muscles. | Oppose, Abduct, Flex Opponens digiti minimi, Abductor digiti minimi, Flexor digiti minimi |
| Which muscles a)abduct the fingers? b)adduct the fingers? | DAB = Dorsals ABduct PAD = Palmars ADuct a)Dorsal interosseous muscles b)Palmar interosseous muscles |
| Which muscles flex at the MP joint? | Lumbrical muscles |
| Which nerve is affected in: Anterior hip dislocation | Obturator nerve |
| Which nerve is affected in: Pelvic fracture | Femoral nerve |
| Which nerve is affected in: Trauma to the lateral aspect of leg, or fibula neck fracture | Common peroneal nerve |
| Which nerve is affected in: Knee trauma | Tibial nerve |
| Which nerve is affected in: Posterior hip dislocation | Superior gluteal nerve and inferior gluteal nerve |
| Which nerve is injured if there is a loss of : a) Thigh adduction b) Thigh abduction | a) Obturator nerve b) Superior gluteal nerve |
| Which nerve is injured if there is a loss of : Thigh flexion and leg extension | Femoral nerve |
| Which nerve is injured if there is a loss of : a) Foot eversion and dorsiflexion, and toe extension b) Foot inversion and plantar flexion, and toe flexion | a) Common peroneal nerve b) Tibial nerve |
| Which nerve is injured if there is a loss of : Sensation of the medial thigh | Obturator nerve |
| Which nerve is injured if there is a loss of : Sensation of anterior thigh and medial leg | Femoral nerve |
| Which nerve is injured if there is a loss of : Sensation of the anterolateral leg and dorsal aspect of foot | Common peroneal nerve |
| Which nerve is injured if there is a loss of : Sensation of the dorsal lateral part of the foot | Superficial peroneal nerve |
| Which nerve is injured if there is a loss of : Sensation of the dorsal medial part of the foot | Deep peroneal nerve |
| Which nerve is injured if there is a loss of : Sensation of the sole of foot | Tibial nerve |
Created by:
lemontea88
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