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Apendicular Muscles: Back/torso
I HATE MUSCLES: Origin, Insertion, and Action
47
Anatomy
Undergraduate 4
04/16/2013

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Term
Latissimus dorsi O
Definition
spinous process of T7-12, ribs 8-12, iliac crest, thoracolumbar fascia
Term
Latissimus dorsi i
Definition
intertubercular groove of humerus
Term
Latissimus dorsi A
Definition
Prime mover of arm extension and abducts and medially rotates
Term
Teres Major O
Definition
inferior, lateral border and inferior angle of scapula
Term
Teres major I
Definition
Lesser tubercle and intertubercular groove of humerus
Term
Teres major A
Definition
Extends, adducts and medially rotates arm
Term
Infraspinatus O
Definition
Infraspinous fossa of scapula
Term
Infraspinatus I
Definition
Greater tubercle of humerus
Term
Infraspinatus A
Definition
Adducts and laterally rotates arm
Term
Subscapularis (Part of rotator cuff) O
Definition
Subscapular fossa of scapula
Term
Subscapularis (Part of rotator cuff) I
Definition
Lesser tubercle of humerus
Term
Subscapularis (Part of rotator cuff) A
Definition
Medially rotates arm
Term
Supraspinatus O
RC
Definition
Supraspinous fossa of scapula
Term
Supraspinatus I
RC
Definition
Greater tubercle of humerus
Term
Supraspinatus A
RC
Definition
Abducts arm and medially rotates arm
Term
Infraspinatus O
RC
Definition
infraspinous fossa of scapula
Term
Infraspinatus I
RC
Definition
Greater tubercle of humerus
Term
Infraspinatus A
RC
Definition
adducts and laterally rotates arm
Term
Teres minor O
RC
Definition
Upper dorsal, lateral border of scapula
Term
Teres minor I
RC
Definition
greater tubercle of humerus
Term
Teres minor A
RC
Definition
adducts and laterally rotates arm
Term
Hamstrings
Definition
Semitendinosus, semimembranosus, long head of biceps femoris, short head of biceps femoris
Term
Semitendinosus O
(HS)
Definition
Ischial tuberosity
Term
Semitendinosus I
HS
Definition
proximal, medial surface of tibia
Term
Semitendinosus A
HS
Definition
Extends thigh and flexes leg and medially rotates leg
Term
Semimembranosus O
HS
Definition
Ischial tuberosity
Term
Semimembranosus I
HS
Definition
posterior surface of medial condyle of tibia
Term
Semimembranosus A
HS
Definition
Extends thigh and flexes leg and medially rotates leg
Term
LOng head of biceps femoris O
HS
Definition
ischial tuberosity
Term
Long head of biceps femoris I
HS
Definition
Head of fibula
Term
Long head of biceps femoris A
HS
Definition
extends thigh and flexes leg, and
Laterally rotates leg
Term
Short head of biceps femoris O
HS
Definition
linea aspera of femur
Term
Short head of biceps femoris I
HS
Definition
Head of fibula
Term
Short head of biceps femoris A
HS
Definition
Flexes the leg and laterally rotates the leg (extends the thigh)
Term
Quadraceps Femoris (Ventral)
Definition
Vastus medialis, vastus lateralis, rectus femoris, Vastus intermedius
Term
Vastus medialis O
QF
Definition
intertrochanteric line and linea aspera of femur
Term
vastus medialis I
QF
Definition
quadriceps tendon to patella and patellar ligament to tibial tuberosity
Term
Vastus medialis A
QF
Definition
extends the leg
Term
Vastus lateralis O
QF
Definition
Greater trochanter and linea aspera of femur
Term
Vastus laterialis I
QF
Definition
quadriceps tendon to patella and patellar ligament to tibial tuberosity
Term
Vastus lateralis A
QF
Definition
Extends the leg
Term
Rectus femoris O
QF
Definition
anterior, inferior iliac spine
Term
Rectus femoris I
QF
Definition
quadriceps tendon to patella and patellar ligament to tibial tuberosity
Term
Rectus femoris A
QF
Definition
extends the leg and flexes thigh
Term
Vastus intermedius O
QF
Definition
anterolateral surface of femur
Term
Vastus intermedius I
QF
Definition
quadriceps tendon to patella and patellar ligament to tibial tuberosity
Term
Vastus intermedius A
QF
Definition
extends leg, flexes thigh (Spans two joints)
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