26 results
Upper Extremity Nerve Pathologies 

 • Axillary Nerves
 • Musculocutaneous Nerve
 • Radial Nerve
 • Median
Upper Extremity ... • Ulnar Nerve ... #differential # ... diagnosis #Neuropathy ... #innervation #neurology
Lower Extremity Nerve Pathologies 

 • Obturator
 • Femoral
 • Common Peroneal
 • Tibial
 • Superior
Lower Extremity ... Nerve Pathologies ... #differential # ... diagnosis #Neuropathy ... #innervation #neurology
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Upper Extremity ... Abduction - C8-T1 (ulnar ... Adduction - C7-T1 (ulnar ... Myotomes #diagnosis #neurology ... #sensory #motor
Causes of Hemiplegia - Differential Diagnosis Algorithm
Cerebral Hemisphere (Contralateral motor cortex)
 • Aphasia
 • Apraxia
 •
Causes of Hemiplegia ... - Differential ... Consciousness • Cranial Nerve ... contralateral extremity ... #Hemiplegia #Neurology
Marcus Gunn Pupil - Relative Afferent Pupillary Defect (RAPD)
Definition: Afferent loop of the pupillary light reflex
Marcus Gunn Pupil ... impaired (loss of sensory ... ) Where: Optic nerve ... * (main cause), ... #Defect #RAPD #neurology
Causes of Peripheral Weakness - With and Without Sensory Changes - Differential Diagnosis Algorithm
With Sensory Changes:
Causes of Peripheral ... Changes - Differential ... Neuron and Motor Neuropathy ... #Neurology #Differential ... Diagnosis #Algorithm #Causes
Causes of Peripheral Weakness with Sensory Changes - Differential Diagnosis Algorithm
Radiculopathy:
 • Disc
 • Spondylosis
 •
Causes of Peripheral ... Weakness with Sensory ... Changes - Differential ... Carpal Tunnel • Ulnar ... #Neurology #Differential
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Lower Extremity ... Emergency • Peroneal Neuropathy ... Commonly caused ... damage to peroneal nerve ... Myotomes #diagnosis #neurology
Mechanisms of Pain
Mixed - Nociceptive/Neuropathic
Nociceptive - Tissue Damage
 - Visceral - (From organ/cavity lining) Poorly localized,
- Nociceptive/Neuropathic ... Deafferentation - Loss of sensory ... Pain #Mechanisms #Neurology ... #Differential # ... Diagnosis #Algorithm #Causes
Froment’s Test for Ulnar Nerve Palsy

This tests for pinch grip weakness caused by ulnar nerve palsy,
Nerve Palsy ... grip weakness caused ... by ulnar nerve ... There is neuropathy ... clinical #video #neurology