6 results
Ulnar Nerve Anatomy and Function
The Ulnar nerve is the nerve of hand power and control. It
Ulnar Nerve Anatomy ... Ulnar nerve is ... Here the sensory ... arm and forearm ... #diagnosis #neurology
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Conditions: • Cauda ... saddle (perineal) anesthesia ... damage to peroneal nerve ... Myotomes #diagnosis #neurology ... #sensory #motor
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Abduction - C8-T1 (ulnar ... regimental badge" anesthesia ... Myotomes #diagnosis #neurology ... #sensory #motor ... #arm #physicalexam
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 ... /or genital sensory ... • S - Saddle anesthesia ... sensory disturbances ... diagnosis #causes #neurology
Lesions of the Spinal cord - Spinal Cord Syndromes

Spinal cord lesions can result in permanent neurologic
result in permanent neurologic ... at the level of sensory ... involvement Cauda ... paralysis - Sensory ... loss - Saddle anesthesia
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
vasculitis • Sensory ... loss, arthralgia, arm ... bruits, asymmetric arm ... affects the skin, neurologic ... muscle weakness • Nerves