7 - MOIA (Arm Muscles and Leg Momvements) Flashcards
O: clavicle, acromion process, & scapular spine of scapula
I: deltoid tuberosity of humerus
A: flex/extend shoulder; abduct/rotate arm medially and laterally.
Deltoid
O: spinous processes of T7-L5, sacrum and iliac crest, & inferior angle of scapula
I: medial crest of intertubercular groove of humerus
A: extends shoulder, adduct and medially rotates arm
Latissimus dorsi
O: clavicle, sternum, superior 6 costal cartilages, & abdominal muscles
I: lateral crest of intertubercular groove of humerus
A: Flex shoulder; extend shoulder from flexed position; adduct & medially rotate arm
Pectoralis major
O: lateral border of scapula
I: medial crest of intertubercular groove of humerus
A: extend shoulder; adduct and medially rotate arm
Teres major
O: infraspinous fossa of scapula
I: greater tubercle of humerus
A: stabilize/extend shoulder & laterally rotate arm
Infraspinatus (rotator cuff)
O: subscapular fossa of scapula
I: lesser tubercle of humerus
A: stabilize/extend shoulder & medially rotate arm
Subscapularis (rotator cuff)
O: supraspinous fossa of scapula
I: greater tubercle of humerus
A: stabilize shoulder and abduct arm
Supraspinatus (rotator cuff)
O: lateral border of scapula
I: greater tubercle of humerus
A: stabilize/extend shoulder; adduct & laterally rotate arm
Teres minor
O: ilium
I: tibial tuberosity via patellar ligament
A: extend knee; flex hip
Rectus femoris (quadriceps)
O: greater trochanter & linea aspera of femur
I: tibial tuberosity via patellar ligament
A: extend knee
Vastus lateralis (quadriceps)
O: linea aspera of femur
I: tibial tuberosity via patellar ligament
A: extend knee
Vastus medialis (quadriceps)
O: body of femur
I: tibial tuberosity via patellar ligament
A: extend knee
Vastus intermedius (quadriceps)
O: anterior superior iliac spine
I: medial side of tibial tuberosity
A: flex hip & knee; laterally rotate thigh
Sartorius
