12 results
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Dermatomes and Myotomes ... Reflexes: • ... damage to peroneal nerve ... #diagnosis #neurology ... #leg #physicalexam
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Dermatomes and Myotomes ... - C6, C7, C8 Elbow ... , T1 (median) Reflexes ... #sensory #motor ... #arm #physicalexam
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 ... Middle Finger Elbow ... None T7-T12 See Dermatomes ... differential #diagnosis #Neurology
Radiculopathy: Signs and Symptoms
 • Back/Neck Pain
 • Decr Range of motion
 • Abnormal posturing
 •
Radiculopathy: Signs and ... • Decr tendon reflexes ... intense, 10/10) • Sensory ... root's dermatome ... Radiculopathy #MSK
Meralgia paresthetica: Pathogenesis and Clinical Findings
Compression/injury of Lateral Femoral Cutaneous Nerve (LFCN) -> Meralgia paresthetica
 •
Femoral Cutaneous Nerve ... rarely follow dermatomal ... nerve, thus symptoms ... gait, strength, reflexes ... MeralgiaParesthetica #MSK
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 ... weakness and sensory ... region (S2-S4 dermatomes ... diagnosis #causes #neurology
Hoffman's sign. Even in this specific case, accompanied by a clonus outline (rhythmic contractions). The median
The median nerve ... middle finger. 2) Ask ... Hoffmanns #Sign #Reflex ... clinical #video #neurology ... #PhysicalExam
Acute Spinal Cord Injuries: Pathogenesis and clinical findings
 • Anterior Cord Syndrome -> Anterior spinal artery
Sensory loss below ... clumsiness in hands ... rectal reflex. ... signs #symptoms #msk ... #orthopedics #neurology
The Neurological Evaluation of a Comatose Patient

Definition:
 • Coma: a state of unresponsiveness; the absence of
threat Cranial Nerves ... brainstem Motor/Sensory ... flexed at the elbow ... caseyalbin #PhysicalExam ... #neurology #comatose
Inverted Supinator Test

Useful for identifying a lesion at the C5-C6 spinal cord level.  Tapping the
normally elicits elbow ... wrist extension and ... #neurology #clinical ... #video #physicalexam ... #orthopedics #msk