17 results
Spinal Cord Injury by Nerve Root Levels
Spinal Root	Sensory	Motor	Reflex
C4	Acromioclavicular Joint	Respiration	None
C5	Radial Antecubital Fossa	Elbow Flexion	Biceps Reflex
C6	Dorsal Thumb	Wrist Extension	Brachioradialis Reflex
C7	Dorsal
Spinal Cord Injury ... Root Sensory Motor ... None T7-T12 See Dermatomes ... differential #diagnosis #Neurology ... #Spine
Lesions of the Spinal cord - Spinal Cord Syndromes

Spinal cord lesions can result in permanent neurologic
cord - Spinal Cord ... result in permanent neurologic ... Causes of spinal ... Weakness - Lower motor ... lesion - Upper motor
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
and Myotomes Reflexes ... Commonly caused ... Myotomes #diagnosis #neurology ... #sensory #motor ... #leg #physicalexam
Upper Motor Neuron (UMN) lesions are lesions occurring anywhere in the CNS from the brain up
cord. ... cord. ... pathology and muscle disorders ... may mimic an LMN disorder ... positive Babinski reflex
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
- Emergency Causes ... cord infarct ... spondylitis • Tethered cord ... region (S2-S4 dermatomes ... #neurology
Transverse Myelitis Overview

Focal inflammatory disorder of the spinal cord resulting in rapid onset of weakness, sensory
of the spinal cord ... Spasticity - Reflexes ... : • Sensory, motor ... • Infectious causes ... diagnosis #management #neurology
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Upper Extremity Dermatomes ... and Myotomes Motor ... , T1 (median) Reflexes ... Myotomes #diagnosis #neurology ... #arm #physicalexam
Spinal Cord Disorders - Differential Diagnosis Framework

Spinal cord neurological lesion:
Clinical findings:
 • Symptoms and signs below
Spinal Cord Disorders ... Cord Causes: 1 ... dysfunction • Abnormal reflexes ... #disorders #diagnosis ... #neurology #differential
Chest Pain - Differential Diagnosis Algorithm
Cardiovascular Causes:
 - Outflow Obstruction
     • Aortic
• Myocarditis Pulmonary ... Gastro-Esophageal Reflux ... • Trauma - Neurologic ... • Somatoform Disorder ... • Spinal
Tromner Sign on Physical Exam

The Trömner sign is commonly used as a clinical neurological examination for
examination for upper motor ... segments of the spinal ... cord. ... or index finger causes ... #physicalexam