11 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Upper Extremity ... Pronation - C7, C8 Wrist ... , T1 (median) Reflexes ... Myotomes #diagnosis #neurology ... sensory #motor #arm
Upper Motor Neuron (UMN) lesions are lesions occurring anywhere in the CNS from the brain up
LMN syndromes are ... UMN lesions are ... positive Babinski reflex ... LMN lesions are ... cord, peripheral nerve
Amyotrophic Lateral Sclerosis (ALS) Summary
ALS: combination of the clinical examination finding of amyotrophy with the pathologic
Microglial cells are ... - Causes progressive ... Increased Jaw Jerk reflex ... activity between nerve ... Lateral #Sclerosis #neurology
Spinal Cord Disorders - Differential Diagnosis Framework

Spinal cord neurological lesion:
Clinical findings:
 • Symptoms and signs below
Spinal Cord Disorders ... Non-compressive Spinal Cord Causes ... dysfunction • Abnormal reflexes ... , lower extremity ... #diagnosis #neurology
 The following #reflexes are routinely tested, and the response elicited is graded from zero to
the side of a nerve ... damage to the pyramidal ... extension of the arm ... neurodegenerative disorders ... Wrist clonus is
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
compression of nerve ... - Emergency Causes ... Syringomyelia • Spinal AVM ... differential #diagnosis #causes ... #neurology
The Neurological Evaluation of a Comatose Patient

Definition:
 • Coma: a state of unresponsiveness; the absence of
threat Cranial Nerves ... Decorticate posturing: Arms ... Decerebrate posturing: Arms ... Casey Albin MD @ ... #PhysicalExam #neurology
Guillain-Barre Syndrome - Summary

Acute AIDP that presents with rapidly progressive flaccid weakness

Epidemiology:
 • 1-2 cases/100,000 per
paralysis of all extremity ... Can begin in arms ... Decreased / Absent Reflexes ... : Arms or legs ... management #treatment #neurology
Causes of Dysarthria - Differential Diagnosis Algorithm
Lower Motor Neuron - Slow, Low Volume, Breathy Speech, Tongue
Lesions of Cranial Nerves ... hyperactive gag reflex ... Paraneoplastic Disorder ... Extra-Pyramidal ... #Dysarthria #Neurology
Transverse Myelitis Overview

Focal inflammatory disorder of the spinal cord resulting in rapid onset of weakness, sensory
extensors of the arms ... (pyramidal distribution ... Spasticity - Reflexes ... brain and/or optic nerve ... diagnosis #management #neurology