Muscle Groups Flashcards
Main Function of Pec Major
adduction and flexion of humerus
Main Function of Pec Minor
depresses and protracts the scapula
Main Function of Deltoid
abduction and medial rotation of humerus
Main Function of supraspinatus
abducts the arm
Main Function of infraspinatus
externally rotates the arm
Main Function of teres minor
externally rotates the arm
Main Function of the subscapularis
internally rotates the arm
Main Function of biceps
elbow flexion
Main Function of triceps
elbow extension
Main Function of forearms
flexion, extension, radial and ulnar deviation of wrist
Main Function of leg and butt adductors
bring legs across midline of the body
Main Function of Quadriceps
extension at the knee joint
Main Function of hamstrings
flexion of the knee and aids in hip extension
Main Function of claves
plantar flexion of the foot & stabilization of the ankle
Main Function of Gluteals
stabilization of the pelvis
Main Function of back muscles
extension, internal rotation and adduction of the shoulder joint
Main Function of teres major
extension, internal rotation and adduction of the shoulder
Main Function of rhomboids
retraction of scapula
Main Function of upper trapezius
upward rotation, elevation
Main Function of middle trapezius
retraction
Main Function of lower trapezius
depression, downward rotation
Main Function of erector spinae/ lower back
lumbar extension
Main Function of rectus abdominis
lumbar spine flexion
Main Function of external obliques
bilat flex of trunk, lat flex of trunk to same side, unilat rotation of torso to opposite side
Main Function of internal obliques
runs below and perpendicular to the external obliques
Main Function of transverse abdominis
stabilizes trunk
