NAME
ACTION
INSERTION
ORIGIN
Subscapularis
Subscapular fossa of the scapula
Lesser tubercle of the humerus
Medially rotates the arm at the glenohumeral joint
Teres major
Lower lateral border and inferior angle of the scapula
Medial lip of the intertubercular groove of the anterior humerus
Adducts, medially rotates, and extends the arm at shoulder joint
Infraspinatus
Infraspinous fossa of the scapula
Middle part of the greater tubercle of the humerus
Laterally rotates the arm at the shoulder joint
Stabilizes the shoulder by drawing humerus by the glenoid fossa of the scapula
Serratus Ventralis
First 10 ribs
Medial surface of the scapula
Depresses the scapula
Rhomboideus
Major- Spinous process of T2-T5
Minor- Ligamentum nuchae and spinous process’ of C7 and T1
Major & Minor- Vertebral border of the scapula
Major & Minor- Retraction and downward rotation of the scapula
Gluteus Maximus
Surface of ilium posterior to posterior gluteal line and posterior inferior surface of sacrum and coccyx
Gluteal tuberosity of femur and iliotibial tract
Extends, laterally rotates, and abducts the thigh
Gluteus Medius
Outer surface of ilium (between posterior and anterior gluteal lines)
Lateral and superior surfaces of the greater trochanter of the femur
Medially rotates, laterally rotates, and abducts thigh at hip
Semitendinosus
Ischial tuberosity of os coxa
Proximal tibia, medial to tibial tuberosity
Extends thigh at hip
Flexes leg at knee and medially rotates knee if flexes
Adductor Femoris
Ischium and pubis
Shaft of femur
Extends thigh at hip
Adductor Longus
Superior aspect of pubis (below pubic tubercle)
Middle third of linea aspera of femur along medial lip
Adducts and flexes thigh at hip
