Musculos Torso Flashcards
1
Q
External intercostals
A
O = inferior border of rib above I = superior border of rib above A = Pulls ribs toward one another to elevate the rib cage; inspiration
2
Q
Internal intercostals
A
O = superior border of rib below I = inferior border (costal groove) of rib above A = Depress rib cage; expiration
3
Q
Diaphragm
A
O = inferior border of rib cage & sternum, costal cartilage of last 6 ribs and lumbar vertebrae I = central tendon A = prime mover of inspiration
4
Q
Pectoralis minor
A
O = anterior surface of ribs 3-5 I = coracoid process of scapula A = draws scapula downward and forward
5
Q
Trapezius
A
O = occipital bone, ligamentum nuchae, C7-T12 I = spine & acromion of scapula , lateral 3rd of clavicl
