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Bassett Collection of Stereoscopic Images of Human Anatomy

Dissection of breast and anterolateral thoracic wall

External intercostal muscles viewed from left

Image #115-3

KEYWORDS: Bones joints cartilage, Muscles and tendons, Rib cage.

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Stanford holds the copyright to the David L. Bassett anatomical images and has assigned Creative Commons license Attribution-Share Alike 4.0 International to all of the images.

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Dissection of breast and anterolateral thoracic wall
External intercostal muscles viewed from left
The left upper limb has been detached from the specimen.
  1. Rib I
  2. External intercostal muscle
  3. Pectoralis minor muscle (cut across near origin)
  4. Pectoralis major muscle (abdominal part, cut off near origin)
  5. External abdominal oblique muscle (cut off)
  6. Rib VIII (pointer on costochondral junction)
  7. Posterior scalene muscle
  8. Serratus anterior muscle (upper part, cut across)
  9. Trapezius muscle right
  10. Serratus anterior muscle middle part, cut across)
  11. Rib VI
  12. Serratus anterior muscle (lower part, cut across)
  13. Serratus posterior inferior muscle (cut across at insertions)
  14. Erector spinae muscle
  15. Rib XII