thorax muscles pt 2 Flashcards
Serratus Posterior Superior
o
nuchal ligament c7-t3 spinous process
Serratus Posterior Superior i
superior borders of 2nd to 4th ribs
Serratus Posterior Superior n
2nd-5th intercostal nerves
Serratus Posterior Superior f
elevates ribs 2-4, proprioception
Serratus Posterior Inferior o
spinous process of t11-L2
Serratus Posterior Inferior i
inferior border of 8th through 12th ribs
Serratus Posterior Inferior n
anterior rami to t9-t12 thoracic spinal nerves
Serratus Posterior Inferior f
depresses ribs 8-12
Levatores costarum o
tips of transverse process of c7,t1-t11
Levatores costarum i
pass inferiorlaterally and insert on rib between tubercle and angle
Levatores costarum n
posterior rami of c8-t11
Levatores costarum f
elevate ribs, assist in respiration, assist with lateral flexion of
External intercostals o
inferior border of ribs
External intercostals i
superior border of rib below
External intercostals n
intercostal nerve
External intercostals f
elevate rib during forced inspiration
Internal intercostals o
inferior border of ribs
Internal intercostals n
intercostal nerve
Internal intercostals i
superior border of rib below
Internal intercostals f
move ribs inferiorly
Innermost intercostals o
inferior border of ribs
Innermost intercostals i
superior border of below rib
Innermost intercostals n
intercostal nerve
Innermost intercostals f
act with internal intercostals
Subcostal o
internal surface of lower ribs near angles
Subcostal i
superior borders of 2nd or 3rd ribs below
Subcostal f
depress ribs
Subcostal n
intercostal nerve
Transversus thoracic o
posterior surface of lower sternum
Transversus thoracic i
internal surface of costal cartilages 2-6
Transverse thoracic n
-intercostal nerve
Transverse thoracic f
depress costal cartilage
External oblique o
external surfaces of 5th-12th ribs
External oblique i
linea alba, pubic tubercle, anterior half of iliac crest
External oblique n
thoracoabdominal
External oblique f
combine with contralateral internal oblique to produce trunk flexion and rotation
Internal oblique o
thoracolumbar fascia, anterior 2/3rds of iliac crest, connective tissue deep to lateral ⅓ of inguinal ligament
Internal oblique i
inferior borders of 10-12th ribs, linea alba, pubic crest
Internal oblique n
thoracoabdominal nerves t6-t12
Internal oblique f
combine with contralateral external oblique to produce trunk flexion and rotation
Transverse abdominis o
internal surfaces of 7th-12th costal cartilages, thoracolumbar fascia, iliac crest, connective tissue, deep to the lateral third of the inguinal ligament
Transverse abdominis i
linea alba with aponeurosis of internal oblique pubic crest and pubis bone
Transverse abdominis n
thoracoabdominal nerves t6-t12
Transverse abdominis f
compresses and supports abdominal viscera
Rectus abdominis f
flexes trunk and compresses abdominal viscera, stabilizes and controls tilt of pelvis
Pyramidalis o
anterior surface of the pubis and anterior pubic ligament
Rectus abdominis o
pubic symphisis and pubic crest
Rectus abdominis i
xiphoid process and 5-7th costal cartilages
Pyramisalis i
linea alba
Rectus abdominis n
thoracoabdominal nerves
Pyramisalis f
tenses linea alba