Technical
Tuesday Serratus Posterior Muscles
The serratus
posterior muscles include the serratus posterior inferior and the serratus
posterior superior. These two, thin superficial muscles of the back begin at
the spinous processes and attach to the ribs. They are sometimes called the
spinocostal muscles for this reason.
- The serratus posterior superior
muscle: runs from the to the 2nd to 5th ribs. This muscle is covered
by the rhomboids and
the trapezius.
- The serratus posterior inferior
muscle runs from the lower thoracic
vertebrae and upper lumbar
vertebrae to the 9th to 12th ribs. The latissimus
dorsi lies above this muscle.
These
muscles help stabilize the spine, and support the muscles of respiration. For
dancers, expanding these muscles aid in supporting the arms during port de
bras, and thus prevent drooping arms.
From the Big Blue Book of Ballet Secrets
Anatomical Secret #171:
“The
serratus posterior muscles include the serratus posterior inferior and the
serratus posterior superior.”
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― Shannon L. Alder
― Shannon L. Alder
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