Spinal cord levels: Difference between revisions
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==Motor Exam (Myotomes)== | ==Motor Exam (Myotomes)== | ||
[[File:Dermatoms alt.png|thumb|Sensory dermatome by spinal level.]] | |||
[[File:Spinal cord tracts.svg|thumb|Spinal cord tracts]] | [[File:Spinal cord tracts.svg|thumb|Spinal cord tracts]] | ||
[[File:Lower limb peripheral innervation.png|thumb|Lower limb peripheral innervation]] | [[File:Lower limb peripheral innervation.png|thumb|Lower limb peripheral innervation]] | ||
*C3-C5: Diaphragm | *C3-C5: Diaphragm | ||
*C5: Shoulder Abduction | *C5: Shoulder Abduction | ||
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==References== | ==References== | ||
<references/> | <references/> | ||
[[Category:Neurology]] | [[Category:Neurology]] | ||
Latest revision as of 12:02, 24 October 2020
Motor Exam (Myotomes)
- 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 |