, chair side bends , machine trunk rotation 12- supraspinatus - origin : medial two thirds of the supraspinous fossa of the scapula and the deep fasica that covers the muscles - insertion : most superior fact on the greater tubercle of the humerus - actions and functions : rotator cuff muscle , intiation of abduction of arm to 15 at glenohumeral joint - exercise : back presses , dumbbell internal rotation , dumbbell external rotation
13- teres major - origin : elongate oval area on posterior surface of the inferior angle of the scapula - insertion : medial lip of the inter tubercular sulcus on the anterior surface of the humerous - action and functions : medial rotation and extension of the arm at the glenohumeral joint - exercise : barbell pull overs , reverse chine ups , t-bar row , bent rows , pull ups , lat pull down . seated row , one arm dumbbell rows , close grip lat pull down 14- biceps femoris - origin long head : ischial tuberosity - origin short head : lower half of linea aspera and latera condyloid ridge - insertion : lateral condyle of tibia and head of tibia - actions and functions : extension of hip , flexion of knees , internal rotation of hip and knee - exercise : bridging , good morning , lying leg curls , seated leg curls 15- soleus - origin : soleal line and medial border of tibia , posterior aspect of fibular head and adjacent surface of neck and proximal shaft tendinous arch between tibial and fibular attachment - insertion : via calcaneal tendon to posterior surface of the calcaneus - actions and functions : plantar flexes the foot - exercise : standing calf raise , one leg toe raises , donkey calf raise , seated calf raise 16- semi membranosus - origin : I chial tuberosity - insertion : posteromediat surface of medial tibial condyle - action and function : extension of hip , flexion of the knees , internal rotation of hip and knee - exercise : good morning , prone leg curl , seated leg curl , standing leg curl . 17- deltoid
- origin : inferior edge of the crest of the spine of the scapula , lateral margine of the acromion , anterior border of lateral one , third of clavicle - insertion : deltoid tuberosity of humerus - action and function : major abductor of arm cabducts the arm beyond unitial 15 done by supraspinatus clavicular fibers assist in
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- Summer '17
- Biceps brachii muscle, origin medial head