Latissimus Dorsi Flashcards
1
Q
Arrises From (Origin)
A
SOS IT iliac crest spines of lower 6 thoracic vertebrae thoraco lumbar fascia outer surface of lower 4 ribs scapula
2
Q
Thoraco Lumbar Fascia attaches
A
muscle to the lumbar and sacral spines
3
Q
Insertion
A
into floor of bicipital groove (humerus)
4
Q
Nerve Supply
A
Thoraco Dorsal Nerve
5
Q
Action
As A Whole
Acts w/
Attactment to
A
Moves Arm In All Direction & Extends
Acts w/ Sternocostal part of pectoralis major to pull trunk upwards
attachment to ribs help in violent expiration (coughing)
6
Q
The latissimus dorsi
A
crosses over inferior angle of scapula and has triple relation to teres major
