Create an account
(iliocostalis, Longissimus, spinalis)
trunk extension, rotation, and lateral flexion of vertebral column
External / Internal oblique (action)
Compresses abdominal contents
Trunk rotation and lateral flexion
Pectoralis major (origin)
Sternal end of clavicle, sternum, cartilage of ribs 1-6, and aponeurosis of external oblique m.
Pectoralis major (insertion)
Fibers converge to insert by a short tendon into lateral side of the intertubercular sulcus of the humerus
Serratus anterior (action)
Rotates scapula so that its inferior angle moves laterally and upward
Trapezius II (middle fibers) (insertion)
Medial margin of acromion process, superior spine of scapula
Trapezius III (lower fibers) (insertion)
Medial spine of scapula and tubercle at apex of spine of scapula
Levator scapulae (insertion)
Medial border of scapula, superior to the spine
(superior angle of scapula)
Latissimus dorsi (origin)
Spinous processes of T7 -T12, thoracolumbar fascia, iliac crest, and inferior 3 or 4 ribs
Please allow access to your computer’s microphone to use Voice Recording.
Having trouble? Click here for help.
We can’t access your microphone!
Click the icon above to update your browser permissions and try again
Reload the page to try again!Reload
Press Cmd-0 to reset your zoom
Press Ctrl-0 to reset your zoom
It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.
Please upgrade Flash or install Chrome
to use Voice Recording.
For more help, see our troubleshooting page.
Your microphone is muted
For help fixing this issue, see this FAQ.
Star this term
You can study starred terms together