2023/2024 Msa Test 2- Shoulder Muscles

2023/2024 MSA Test 2- Shoulder Muscles Action of pectoral muscles - ANS-move pectoral girdlePectoral muscles - ANS-Pectoralis majorPectoralis minorSubclaviusSerratus anteriorshoulder muscles that connect upper limb to vertebral column - ANS-Latissimus dorsiTrapezius Levator scapulaeRhomboid majorRhomboid minorextrinsic - ANS-either the origin or the insertion is on the outside or not containedintrinsic - ANS-both origin and insertion are on the inside on the same structures3 groups of shoulder musculature - ANS-superficial extrinsic, intrinsic, and deep extrinsicsuperficial extrinsic muscles - ANS-Latissimus dorsiTrapeziusDeep extrinsic muscles - ANS-Levator scapulaeRhomboid majorRhomboid minorSerratus anteriorintrinsic muscles - ANS-DeltoidTeres majorRTC groupaction of pectoralis major - ANS-Powerful AdductionPowerful Medial rotation (internal)Draw scapula anterior and inferiorpectoralis minor action - ANS-pulls the shoulder girdle forwards and downwardssubclavius action - ANS-stabilizes the clavicle during shoulder activity, steadying the clavicle in the sternoclavicular joint.Serratus Anterior action - ANS-PROTACTOR ****has to do with transfer of weight of the trunk to the upper extremity (carrying a suitcase or weight)Latissimus Dorsi action - ANS-Powerful extensor of the humerus when it is flexed Internally rotates humerus retracts the shoulder girdleTrapezium action - ANS-The upper fibers elevate the scapula for example when carrying a weight.The middle fibers produce bracing of the shoulder girdle.The