Muscles: Origin, Insertion, Action Part 2 Flashcards
Of the vertebral column, trunk, abdominal region
Where is the origin of the Erector Spinae?
iliac crest, sacrum, lumbar spinous process
Where is the insertion of the Erector Spinae
spinous process
transverse process
Ribs
What is the bilateral action of the Erector Spinae?
Vertebral extension
What is the unilateral action of the Erector Spinae?
Lateral flexion
What makes up the Erector spinae?
Spinalis
longissimus
Iliocostalis
Where is the origin of the scalenes?
Transverse process
Where is the insertion of the scalenes?
Rib one and two
What is the action of the scalenes?
Elevate ribs, flex neck
Where is the origin of the External intercostal?
Inferior rib
Where is the insertion of the External intercostal?
Superior rib
What is the action of the External intercostal?
Elevate ribs
Where is the origin of the Internal intercostal?
Superior rib
Where is the insertion of the internal intercostal?
Inferior rib
What is the action of the Internal intercostal?
Depress ribs
Where is the origin of the diaphragm?
Xiphoid; ribs 4-10; lumbar vertebrae body
