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11 Cards in this Set

  • Front
  • Back
Muscle:Internal intercostal, interosseous portion
O:
I:
F:
O:inferior margin of ribs 1-11
I:superior surface of the rib below
F:depresses ribs 1-11
Muscle: innermost intercostal
O:
I:
F:
O:inferior margin of ribs 1-11; sparse or absent in superior thorax
I:superior surface of the rib below
F:depresses ribs 1-11
Muscle: transverse thoracis
O:
I:
F:
O:inner thoracic lateral margin of sternum
I:inner chondral surface of ribs 2-6
F:depresses rib cage
Muscle: subcostal
O:
I:
F:
O:inner posterior thorax; sparse in upper thorax; from inner surface of rib near angle
I:inner surface of second or third rib below
F:depresses thorax
Muscle: serratus posterior inferior
O:
I:
F:
O: spinous processes of T11, T12, L1-L3
I:lower margin of ribs 7-12
F:contraction of theses muscles tends to pull the rib cage down, supporting expiratory effort
Muscle:transversus abdominis
O:
I:
F:
O:posterior abdominal wall at the vertebral column via the thoracolumbar fascia of the abdomiinal sponeurosis
I:transversus abdominis aponeurosis and inner surface of ribs 6-12, interdigitating at that point with the fibers of the diaphragm; inferior-most attachment is at the pubis
F:compresses abdomen
Muscle: internal oblique abdominis
O:
I:
F:
O:inguinal ligament and iliac crest
I:cartilaginous portion of lower ribs and the portion of the abdominal aponeurosis lateral to the rectus abdominis
F:rotates trunk; flexes trunk; compresses abdomen
Muscle:External oblique abdominis
O:
I:
F:
O:osseous portion of the lower seven ribs
I:illiac crest, inguinal ligament, and abdominal aponeurosis lateral to rectus abdominis
F:bilateral contraction flexes vertebral column and compresses abdomen; unilateral contraction results in trunk rotation
Muscle: rectus abdominis
O:
I:
F:
O: originates as four or five segments at pubis inferiorly
I: xiphoid process of sternum and the cartilage of ribs 5-7, lower ribs
F:flexion of vertebral column
Muscle: quadratus lumborum
O:
I:
F:
O: illiac crest
I:transverse processes of the lumbar vertebrae and inferior border of rib 12
F: bilateral contraction fixes abdomina wall in support of abdominal compression
Muscle: Latissimus dorsi
O:
I:
F:
O:lumbar, sacral, and lower thoracic vertebrae
I:humerus
F:for respiration, stabilizes posterior abdominal wall for expiration