6 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Upper Extremity Dermatomes ... Pronation - C7, C8 Wrist ... , T1 (median) Reflexes ... Myotomes #diagnosis #neurology ... #sensory #motor
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
Cord Injury by Nerve ... Levels Spinal Root Sensory ... C6 Dorsal Thumb Wrist ... None T7-T12 See Dermatomes ... differential #diagnosis #Neurology
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Lower Extremity Dermatomes ... and Myotomes Reflexes ... Commonly caused ... damage to peroneal nerve ... Myotomes #diagnosis #neurology
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 ... and/or genital sensory ... - Emergency Causes ... region (S2-S4 dermatomes ... #neurology
The Neurological Evaluation of a Comatose Patient

Definition:
 • Coma: a state of unresponsiveness; the absence of
threat Cranial Nerves ... brainstem Motor/Sensory ... Arms extended; wrists ... Casey Albin MD @ ... #PhysicalExam #neurology
Transverse Myelitis Overview

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