9 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Dermatomes and Myotomes ... Motor Function ... - C6, C7, C8 Elbow ... Triceps power is ... #diagnosis #neurology
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Lower Extremity ... Dermatomes and Myotomes ... Commonly caused ... #diagnosis #neurology ... #sensory #motor
Causes of Neuromuscular Weakness
 • Spinal Cord: Demyelinating Disease (MS), Epidural abscess, Infarction, Syringomyelia, Tetanus, Transverse
Demyelinating Disease (MS ... Trauma, Tumor • Motor ... Mitochondrial myopathy, Muscular ... #differential #diagnosis ... #neurology
Causes of Low Back Pain - Differential Diagnosis
Intrinsic Spine: Lumbar strain, Herniated nucleus pulposus, Compression fracture,
Causes of Low Back ... Referred: • Vascular ... cholecystitis; • Neurologic ... BrighamChiefs #Lower ... #msk
Acute Spinal Cord Injuries: Pathogenesis and clinical findings
 • Anterior Cord Syndrome -> Anterior spinal artery
injury, often from vascular ... Mixed upper and lower ... Injury #Syndromes #diagnosis ... signs #symptoms #msk ... #orthopedics #neurology
Causes of Dysarthria - Differential Diagnosis Algorithm
Lower Motor Neuron - Slow, Low Volume, Breathy Speech, Tongue
Causes of Dysarthria ... - Differential Diagnosis ... Algorithm Lower ... Myasthenia Gravis • Muscular ... #Dysarthria #Neurology
Amyotrophic Lateral Sclerosis (ALS) Summary
ALS: combination of the clinical examination finding of amyotrophy with the pathologic
- Disease of motor ... - Causes progressive ... 4) progressive muscular ... Upper extremity, lower ... Lateral #Sclerosis #neurology
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
- Differential Diagnosis ... Sensory and/or motor ... pulse deficits vascular ... affects the skin, neurologic ... tract, and often causes
Evaluation of Recurrent Falls

Core Concept:
Maintaining an upright posture requires the integrated function of multiple systems.
Disruption in
Cataracts - Macular ... Motor Strength ... Myopathies - Motor ... Recurrent #Falls #Diagnosis ... #Neurology