Muscles of Thorax Relating to Movements of the Scapula Flashcards
1
Q
Pectoralis minor
A
O: Ribs 3-5
I: Scapula
A: Stabilizes scapula by drawing it forward and downward
N: Pectoral nerves
2
Q
Serratus anterior
A
O: Ribs 1-8
I: Scapula
A: Protracts and holds scapula against the thoracic wall
N: Long thoracic nerve
3
Q
Trapezius
A
O: Superior nuchal line, ligamentum nuchae, and vertebrae C7-T12
I: Clavicle, scapula
A: Elevates, retracts, and rotates scapula
N: Accessory nerve (CN 11)
4
Q
Levator scapulae
A
O: Vertebrae C1 to C4
I: Scapula
A: Retracts and stabilizes scapula
N: Dorsal scapular nerve
