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External oblique 312
Origin= Lumbdorsal fascia and the last 9 or 10 ribs Insertion= Median raphe of distal portion of sternum and linea alba from sternum to pubis Action= Compress the abdominal region TERM 2
Internal Oblique 312
DEFINITION 2 Origin= lumbodorsal fascia in common with external oblique, and dorsal iliac border Insertion= Linea alba in common with the external oblique and transversus abdominis Action= Compresses the abdominal region TERM 3
Transversus abdominis 312
DEFINITION 3 Origin= From the costal cartilages of the posterior ribs, transverse processes of lumbar vertebrae and ventral border of ilium. Insertion= linea alba in common with two oblique Action= Compresses the abdomen TERM 4
Infraspinatus 324 EXAM Shoulder and upper
forelimbs (deep)
DEFINITION 4 Origin= surface of the infraspinous fossa. Insertion = lateral surface of the greater tuberosity of the humerus. Action= rotates the humerus laterally Shoulder and upper forelimbs (deep) TERM 5
Supraspinatus 324 EXAM Shoulder and upper
forelimbs (deep)
DEFINITION 5 Origin = Suprasinous fossa Insertion = the greater tuberosity of the humerus action = protracts the humerus
Teres Major 324 Shoulder and upper forelimbs
(deep)
Origin = Scapula Insertion= Humerus Action = Retracts humerus & rotates it medially TERM 7
Acromiodeltoid 324 Shoulder and upper
forelimbs (deep)
DEFINITION 7 Origin = acromion of scapula Insertion = spinodeltoid muscle action= retracts humerus and rotates it medially TERM 8
Spinodeltoid 325 Shoulder and upper
forelimbs (deep)
DEFINITION 8 Origin = Scapula Insertion = Humerus Action = Retracts humerus and rotates it outward Acromiodeltoid and spinodeltoid are synergists TERM 9
Biceps brachii 326 Shoulder and upper
forelimbs (deep)
DEFINITION 9 origin= above the geloid fossa of the scapula insertion= radial tuberosity action = flexes the forearm, supinate the manus, and stabilizes the shoulder joint Brachialis and biceps brachii are synergist in flexing the forearm Thick muscle TERM 10
Pronator Quadratus 330 EXAM Lower forelimb
deep
DEFINITION 10 Origin= Ulna Insertion = Radius Action = Rotates the radius synergistically with the pronator teres which adducts and retracts the leg
vastus intermedius
origin = femur insertion = tibial tuberosity action = extends the shank TERM 17
soleus
DEFINITION 17 Origin = fibula insertion = calcaneal tuber action = extension of pes synergic to gastrocnemius and plantaris TERM 18
Pectoralis major
DEFINITION 18 origin sternum and midventral raphe insertion humersu action draws forelimb towards midline and turns menus forward TERM 19
pectoralis minor
DEFINITION 19 Origin = sternebrae and xiphoid prcess Insertion = humerus action draws forelimb towards the midline
