Term
Internal and External Intercostals
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O and I:
Action:
Nerve: |
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Definition
Internal and External Intercostals
O and I: Inferior border of rib above and superior border of rib below
Action:
External - forceful inspiration; elevates ribs
Internal - forceful expiration; depresses ribs
Nerve: Intercostal n.
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Term
Transverseus Thoracis
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O:
I:
Action:
Nerve: |
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Definition
Transverse Thoracis
O: Posterior surface of sternum
I: Inferior surface of costal cartilages 2-6
Action: Weakly depresses ribs; proprioception
Nerve: Intercostal n. |
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Term
Levator Costae
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O:
I:
Action:
Nerve: |
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Definition
Levator Costae
O: TP of C7-T11
I: Subadjacent ribs between tubercle and angle
Action: elevates ribs
Nerve: C8-T11 |
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Term
Serratus Anterior
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O:
I:
Action:
Nerve: |
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Definition
Serratus Anterior
O: Lateral surface of ribs 1-8
I: Medial border of scapula
Action: Protract and laterally rotate scapula, assist in respiration
Nerve: Long thoracic n. (C5-C7)
"5, 6, 7 - raise your wings up to heaven" |
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Term
Serratus Posterior Superior
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O:
I:
Action:
Nerve: |
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Definition
Serratus Posterior Superior
O: Nuchal ligament and SPs of C7-T3
I: Superior border of ribs 2-4
Action: Elevates ribs, proprioception
Nerve: Intercostal n. 2-5 |
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Term
Serratus Posterior Inferior
O:[image]
I:
Action:
Nerve: |
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Definition
Serratus Posterior Inferior
O: SPs of T11-L2
I: Inferior border of ribs 8-12
Action: Depresses ribs, proprioception
Nerve: T9-T12 |
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Term
Diaphragm[image]
O:
I:
Action:
Nerve: |
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Definition
Diaphragm
O: Xiphoid process, ribs/cartilages 7-12, lumbar vertebrae
I: central tendon
Action: Major respiratory muscle
Nerve: Phrenic n. (C3-C5)
"C3, 4, 5 - keeping diaphragm alive" |
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