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Muscles of the spine and thorax

  1. Erector Spinae group
    1. Iliocostalis
    2. Longissimus
    3. Spinalis
  2. Transversospinalis group
    1. Semispinalis capitis/cervicis/thorcics
    2. Multifidi
    3. Rotators
  3. Splenii
    1. Splenius capitis
    2. Splenius cervicis
  4. Suboccipitals group
    1. Rectus capitis posterior major / minor
    2. Oblique capitis superior / inferior
  5. Quadratus lumborum
  6. Abdominals
    1. Rectus Abdominis : flex vertebral column, tilt pelvis posterioly
    2. Transverse Abdominis : compress abdominal contents
    3. External Oblique : Ipsilateral laterally flex vertebral column, contralateral rotate vertebral column, flex vertebral column
    4. Internal Oblique : Ipsilateral laterally flex vertebral column, ipsilateral rotate vertebral column, flex vertebral column
  7. Diaphragm
  8. Intercostals
    1. External intercostals
    2. Internal intercostals
  9. Serratus Posterior superior / inferior
    1. Superior : elevate the ribs during inhalation
    2. Inferior : depress the ribs during exhalation
  10. Intertransversarii
  11. Interspinalis

  • Muscle movement during breathing
    • Inspiration : Diaphragm(contracted), External intercostals(contracted),
    • Forced inspiration: Diaphragm, external intercostals,  SCM, scalene, Serratus anterior
    • Passive Expiration : Diaphragm(relaxed), external intercostals(relaxed)
    • Forced expiration : internal intercostals, abdominal muscles, serratus posterior
  • (210) Muscles of Respiration | Breathing Mechanics | Respiratory Physiology – YouTube
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Spine and Thorax Trail Guide - Test for Massage Therapist
3 years ago

[…] Muscles […]

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