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Which muscles and nerves are responsible for supination?
- Biceps brachii (musculocuateos nerve)
- Supinator muscle (deep branch of radial nerve)
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In which compartment is the DPN? And what web space innervates?
Anterior compartment and innervates the 1st dorsal web space.
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Injury to the long thoracic nerve will cause what?
Medial winging of the scapula.
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Popliteal entrapment syndrome
- Related to intensity of workout.
- Resolves quickly after exercise.
- Foot pulses decreased w/plantar or dorsiflexion
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S1 nerve
- Sensation to lateral foot
- Achilles reflex
- Plantar flexion of great toe
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Commotio cordis - at what point does the impact occur?
- 10-30 milliseconds before the T wave peak.
- Age appropriate safety balls reduce the risk (used in leagues of 13 yo and younger.)
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Contraindications to hyaluronic acid supplementation?
Pregnancy, joint infection, bacteremia, nursing, pediatric patients, protein allergy.
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Which sports can an athlete with sickle cell disease can play?
All but high exertion, collision, and contact sports.
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Cryo and heat
Can both decrease muscle spasm.
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Medial third clavicle fractures, when are they surgical?
Female, comminution, displacement, shortening, older age and greater levels of trauma.
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Anteror tibialis, origin and insertion:
- Origin: anterolateral tibia and interoseous membrane.
- Insertion: Medial cuneiform and base of 1st metatarsal.
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Type I fibers are more efficient at?
Using oxygen -->ATP. Storage fuel is triglycerides.
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Anterior spinal cord of the neck causes what?
- Bilateral LE paralysis > UE paralysis. Bilateral loss of pain and temp.
- Vibration and propioception are intact.
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Obturator nerve entrapment:
- Groin pain, radiates to medial thigh.
- Paresthesias medial thigh.
- Weak hip adductors and pain w/hip addcutor stretching.
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Blunt mechanism of injury to the carotids:
- Hyperextension
- Direct trauma
- Laceration by adjacent bones (sphenoid or petrous bones)
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What structures form the femoral triangle?
- Inguinal ligament
- Medial border of the adductor longus
- Medial border of the sartorious
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Most common sports with urinary incontinence?
- Gymnastics
- Basketball
- Tennis
- Field hockey
- Track
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Klippel-Feil syndrome
- Fusion of cervical vertebrae w/hypermobility at unfused levels.
- I Single fused segment
- II Multiple noncontiguous fused segments
- III Multiple contiguous fused segments
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PIN syndrome
- Decreased ability to extend the wrist
- PIN is purely motor
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Gamma motorneurons
Adjust the length of muscle spindles so that sensitivity to stretch can be maintained over a wide range.
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Sholder abductor innervation?
- Supraspinatus: suprascapular
- Deltoid: axillary
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Muscles at the medial epicondyle:
- Pronator teres
- Flexor carpi radialis
- Palmaris longus
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Position of ankle during dislocation
- Maximal plantar flexion
- Axial load with forced inversion
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Monteggia's fracture
- Fracture of proximal ulna with radial head dislocation.
- FOOSH with forced pronation.
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Rolando's fx
- Y shaped at the base of 1st metacarpal
- Intraarticular
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Galeazzi's fracture
- Fx of middle or distal third of radius
- Subluxation of distal ulna
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