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M of the Thorax

Nerve, blood supply, origin, insertion

MuscleOriginInsertionBlood SupplyInnervation
Subcostales Internal surface of one rib near angle Internal surface of 2nd or 3rd rib below A Pig Has Silly Sausage Muscles, Sometime sally Takes Long Showers Adjacent intercostal aa
Transversus thoracic Lower 1/2 of posterior surface of sternum & xiphoid process; costal cartilage of lower 4 true ribs near sternal ends Inner surfaces of costal cartilages of ribs 2-6 A Pig Has Silly Sausage Muscles, Sometime sally Takes Long Showers Adjacent intercostal nn
Serratus posterior superior Spines and supraspinous ligs of C7-t3 Aponeurosis from lower part of nuchal lig Superior borders and external surfaces of ribs 2-5 A Pig Has Silly Sausage Muscles, Sometime sally Takes Long Showers Intercostal nn 2-5
Serratus posterior inferior Spines and supraspinous ligs of t11-L3 Inferior borders and external surfaces of ribs 9-12 A Pig Has Silly Sausage Muscles, Sometime sally Takes Long Showers Ventral rami of thoracic spinal nn 9-12
Levatores costarum Tips of transverse processes of C7-T12 Superior border and external surface of rib immediately below A Pig Has Silly Sausage Muscles, Sometime sally Takes Long Showers Lateral br of dorsal rami of corresponding thoracic spinal nn
Diaphragm Sternal: Back of xiphoid process Costal: Internal surfaces of lower 6 ribs & adjoining costal cartilage; Lumbar - Medial and lateral lumbocostal arches and lumbar vertebraes Central tendon below pericardium Central: superior and inferior phrenic aa, musculophrenic a, pericardacophrenic a Costal margins: Lower 5 intercostal and subcostal aa Phrenic nn
External intercostal 11 pairs from lower border of one rib Upper border of rib below Ant. intercostal a from internal thoracic a Post. intercostal aa from desc. thoracic a; Highest intercostal a; Subcostal a; Sup. thoracic a; Musculophrenic a; Addition: Suprascapular; superficial cervical, thoracoacromial,lat. thoracic, & subscap aa Adjacent intercostal nn
Internal intercostals 11 pairs from floor of one costal groove and adjacent costal cartilage Upper border of rib below A pig has silly sausage muscles, Sometimes Sally take long showers Adjacent intercostal nn
Innermost intercostals Internal aspect of one rib Internal aspect of adjoining rib A Pig Has Silly Sausage Muscles, Sometime sally Takes Long Showers Adjacent intercostal nn
Created by: PippaODU