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5e77f415229e42a8b2c4e1acea73d533-oa-4

{{c1::BOTH Muscle & Nerve::muscle/nerve}} injury may generate spontaneous activity

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Ulnar N. Deep motor branch innervates m. : {{c1::Flexor pollicis brevis (deep head)}} {{c1::Adductor pollicis}} {{c1::I...

Saphenous Neuropathy, EDX findings : NCS SNAP: {{c1::Abnormal saphenous nerve}} CMAP: {{c1::Normal}} EMG femoral nerve...

crutch palsy clincial presentation may c/o weakness in {{c1:: all radial n. innervated m.}}, Sensation may be decreased...

75192cf4eccf4032a077020cc0d8ae66-ao-8

{{c1::Severe CTS::CTS severity}}: sensory loss and thenar muscular atrophy

Posterior Interosseus Nerve muscles of the forearm Superficial {{c1::Supinator}} {{c1::Extensor digitorum (communus)...

Sciatic neuropathy EDX findings : NCS SNAP: Abnormal {{c2:: superficial peroneal (fibular) and sural sensory}} CMAP: A...

Failure of an AP to propagate past an area of demyelination (along healthy axons) is known as {{c1:: conduction block .}...

lateral femoral cutaneous nerve course pass over the {{c1::iliacus::m.}} toward the {{c2::anterior iliac spine}} It pa...

Obturator neuropathy, Clinical presentation : altered sensation in the {{c1::inguinal/medial thigh}} region (common) in...

Ulnar N Hypothenar branch innervated 3 muscles {{c1::Opponens digiti quinti}} {{c1::Abductor digiti quinti}} {{c1::Flex...

{{c1::Recruitment}} refers to addition successive MU's to increase force of contraction. can help decide bewtween {{c2...

AIDP clinical presentation sx's worst at {{c3::4 weeks::time}} after onset {{c1::symmetric::symmetric/asymmetric}} as...

Common peroneal neuropathy EDX findings : NCS SNAP Abnormal {{c5::superficial peroneal (fibular)}} Normal {{c5::Sural ...

5bcc0fc5f9cd49319ab40a1a2fbe31a2-oa-2

Repetitive nerve stimulation: These are studies in which a {{c1::repeated}} {{c1::supramaximal}} stimulation of a motor ...

Single Fiber EMG parameters {{c1::Blocking}}: This is an abnormality that occurs when a single muscle fiber AP {{c3::fai...

Deep Peroneal (Fibular) Nerve innervates : Leg {{c1::Tibialis Anterior}} {{c1::Extensor Digitorum Longus}} {{c1::Extens...

TYPE I FIBER ATROPHY {{c1::Myotonic Dystrophy}} {{c2::Nemaline rod myopathy}} Fiber type disproportion

{{c2::fasciculations}} EMG finding are associated with {{c1::Anterior horn cell}} diseases (broad category)

in MGA An initial {{c1::positive}} deflection of the median nerve CMAP at {{c2::elbow}} is seen, which is not see...

role of NCS in Radiculopathy is to evaluate {{c1::superimposed pathology}} to explain the patient’s symptoms

anterior tarsal tunnel syndrome EDX findings: NCS SNAP: Abnormal {{c1::deep peroneal (fibular) (Abnormal findings to th...

Guyons Canal EDX findings... SNAP: {{c1::5th digit is abnormal, but DUC is normal}} CMAP: Amplitude Abnormal {{c2::Wrist...

Axillary n. Course :

Latissimus dorsi Nerve: {{c1::Thoracodorsal}} Roots: {{c2:: C6 , C7 , C8::3 }}

Neuromyotonic discharges classically seen in {{c1::neuromyotonia (Isaac’s syndrome)::eponym}} .

sural nerve cutaneous

Martin-Gruber anastamosis, Median n. now innervates... {{c1:: adductor pollicis ( ADP ) }} {{c2:: abductor digiti minim...

lateral femoral cutaneous n. pure sensory nerve fibers originate from the {{c1::L2}} and {{c1::L3}} nerve roots from...

SMA , spinal muscle atrophy portion of motor neuron affected {{c1::lower motor neuron}}

gluteal n. injury clinical pres superior gluteal neuropathy: presents with weakness of {{c1::hip abduction}} and {{c1::...

EMG Special Studies Furthermore, small fiber neuropathies manifest as {{c1::burning pain::sx}} in the extremities with...

H-reflex: Possibly abnormal in an {{c1::S1}} radiculopathy but not pathognomonic

Myopathies Repetitive Nerve Stimulation A normal or a decremental response can occur This is due to the {{c1::reduced sa...

Radial Tunnel syndrome NCS will demonstrate {{c1::typically no findings}} EMG will demonstrate {{c1::typically no fin...

Anterior interosseous syndrome Phys-Ex finding pt may demonstrate a positive {{c1:: “ OK ” }} sign or Inability to {...

5e77f415229e42a8b2c4e1acea73d533-oa-9

Pure axonal injury Etiology : (a) focal crush (b) {{c4::stretch (traction)}} (c) {{c2::transection}} (d) {{c3::perip...

{{c1::Tibialis posterior}} Nerve: {{c2::Tibial}} Roots: {{c3:: L5 , S1::2 }}

{{c1::Myokymic discharges}}: rhythmic groups of MUAPs firing repetitively clinicaly present as slow continuous {{c3...

Extensor digitorum longus / Indicis / digit minimi Nerve: {{c1::Radial (Posterior interosseous branch)}} Roots: {{c2:: ...

Myasthenia gravis ( MG ): disorder resulting in a decreased quantal response due to an autoimmune response against pos...

Radiculopathy (sensory vs motor) most commonly presents as: {{c1::pure sensory}} complaints, {{c1::sensori-motor}} c...

Hand-cuff palsy E DX findings : Normal/Abnormal NCS: superfical radial nerve SNAP: {{c1::Abnormal}} radial nerve CMAP:...

this is a {{c1::Concentric}} needle electrode