Peripheral Nerve Roots - Trunk Ms

Question 1

Inspiration

Answer 1

• Phrenic Nerve (C3-C5)
  
  • Diaphragm
• Intercostal Nerves (T1-T12)
  
  • levator costorum
  • external intercostals
  • anterior internal intercostals

Question 2

Forced Expiration

Answer 2

• Intercostals (T1-L1)?
  
  • internal obliques T7-L1
  • transverse abdominis
  • external obliques T7-T12
  • posterior internal intercostals T1-T12
  • rectus abdominis T7-T12

Question 3

Spine Extension

Answer 3

• Cords: T1-T12, L1-L5, S1-S3
  
  • erector spinae
  • transversospinalis
  • interspinales
  • rotatores intertransversarii

Question 4

Spine Flexion

Answer 4

• Intercostal T7-T12 - Rectus abdominis, EO
• Intercostal T7-L1 - Internal oblique
• Lumbar Plexus L1 - Psoas Minor

Question 5

Spine Lateral Flexion

Answer 5

Lumbar Plexus (T12-L3) Quadratus lumborum

Question 6

Spinal Rotation

Answer 6

rotatores, internal/external oblique, intertransversarii, transversospinalis