Difference between revisions of "Spinal cord levels"

(Sensory Exam)
 
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==Motor Exam==
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==Motor Exam (Myotomes)==
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[[File:Spinal cord tracts.svg|thumb|Spinal cord tracts]]
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[[File:Dermatomes and cutaneous nerves - anterior.png|thumb|Dermatomes and cutaneous nerves - anterior]]
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[[File:Dermatomes and cutaneous nerves - posterior.png|thumb|Dermatomes and cutaneous nerves - posterior]]
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[[File:Lower limb peripheral innervation.png|thumb|Lower limb peripheral innervation]]
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*C3-C5: Diaphragm
 
*C3-C5: Diaphragm
 
*C5: Shoulder Abduction
 
*C5: Shoulder Abduction
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*S1-S2: Ankle Plantarflexion
 
*S1-S2: Ankle Plantarflexion
 
*S2-S4: Anal Sphincter Contraction
 
*S2-S4: Anal Sphincter Contraction
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===Reflexes===
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{| class="wikitable"
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|-
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| '''Level<br/>'''
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| '''Reflex<br/>'''
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|-
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| C5<br/>
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| biceps<br/>
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|-
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| C6<br/>
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| brachioradialis
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|-
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| C7
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| triceps
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|-
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| L3
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| quadriceps
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|-
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| S1
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| achilles tendon
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|-
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| S2,3,4
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| bulbocavernosus, anal wink
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|}
  
 
==Sensory Exam==
 
==Sensory Exam==
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*S2-S4 Perineal Region
 
*S2-S4 Perineal Region
  
==Spinal Reflex Exam==
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{{Cervical radiculopathy table}}
*C6 Biceps
 
*C7 Triceps
 
*L4 Patellar
 
*S1 Achilles
 
  
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==See Also==
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*[[Sensory exam]]
  
==Source==
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==References==
*Netter's Atlas
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<references/>
*Rosen's 2013, Chapter 43- Spinal Injuries- Tables 43-3,43-4
 
  
[[Category:Neuro]]
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[[Category:Neurology]]

Latest revision as of 04:05, 5 June 2017

Motor Exam (Myotomes)

Spinal cord tracts
Dermatomes and cutaneous nerves - anterior
Dermatomes and cutaneous nerves - posterior
Lower limb peripheral innervation
  • C3-C5: Diaphragm
  • C5: Shoulder Abduction
  • C5-C6: Elbow Flexion
  • C6-C7: Wrist Extension
  • C7-C8: Elbow Extension
  • C8: Finger Flexion
  • T1-T6: Intercostal Muscles
  • L3-L4: Thigh Adduction
  • L2-L4: Knee Extension
  • L4-L5: Ankle Dorsiflexion
  • L5-S1: Great Toe Extension
  • S1-S2: Ankle Plantarflexion
  • S2-S4: Anal Sphincter Contraction

Reflexes

Level
Reflex
C5
biceps
C6
brachioradialis
C7 triceps
L3 quadriceps
S1 achilles tendon
S2,3,4 bulbocavernosus, anal wink

Sensory Exam

  • C2 Occiput
  • C3 Thyroid Cartilage
  • C4 Suprasternal Notch
  • C5 Below Clavicle
  • C6 Thumb
  • C7 Index Finger
  • C8 Little Finger
  • T4 Nipple Line
  • T10 Umbilicus
  • L1 Femoral Pulse
  • L2-L3 Medial Aspect of Thigh
  • L4 Knee
  • L5 Lateral Aspect of Calf
  • S1 Lateral Aspect of Foot
  • S2-S4 Perineal Region

Cervical Exam by Level

Radiculopathy Motor Deficit Sensory Deficit Diminished Reflex
C4 Levator Scapulae & Shoulder elevation
C5 Deltoid & Biceps Biceps
C6 Brachioradialis & Wrist extension Thumb Paresthesia Brachioradialis
C7 Triceps & Wrist flexion Index/Middle/Ring Paresthesia Triceps
C8 Index/Middle distal phlnx flexion Small Finger Paresthesia

See Also

References