A&P TORSO Flashcards
Deltoid
Prime mover of arm abduction
Pectoralis major
Prime mover of arm flexion; adduction
Pectoralis minor
Draws scapula forward and inferiorly
Serratus anterior
Rotates scapula
Transverse abdomonis
Compresses abdominal contents
Internal oblique
External oblique
Compresses abdominal wall
Rectus abdomonis
Flexes the vertebral column
Intercostals
- External: pulls ribs toward one another to elevate rib cage.
-Internal: draw ribs together to depress rib cage
Trapezius
Raises, rotates, retracts (adducts) scapula to stabilize it
Latissimus dorsi
Prime mover of the extension of arm
Rhomboid major
Retracts and stabilizes scapula
Rhomboid minor
Retracts and stabilizes scopula
teres major
Extends, medially rotates, and adducts arm
Levatator scapulae
Elevates and adducts scapula
Supraspinatus
Initiates abduction of arm
Infraspinatus
Laterally rotates arm