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gross anatomy 3

muscles and functions

QuestionAnswer
What is the Origins of the Trapezius External Occipital protuberance ligamentum nuchae C7-T12 spinous processes
what is the insertion of the trapezius Upper-Lateral third of clavicle, acromion Middle- spine of scapulae Lower- root of spine of scapula
What is the action of the trapezius Upper: elevation, upward rotation of the scapulae Middle: spine of scapula Lower: root of spine of scapula
what is the origin(s) of latissimus dorsi thoracolumbar aponeurosis lower 6 thoracic spinous process sacrum and the iliac crest lower 3 to 4 ribs inferior angle of scapula
what is the insertion(s) of the latissimus dorsi bicipital groove of humerus
what is the actions of the latissimus dorsi extension medial rotation and adduction of humerus
what is the origin(s) of the teres major inferior angle of the scapula(dorsal surface) lower third of axillary border of scapula
what are the insertion(s) of the teres major medial lip of bicipital groove of humerus
what are the actions of teres major extension medial rotation and adduction of humerus
what is the nerve that innervates the teres major lower subscapular nerve
what are the origin(s) of teres minor upper 2/3 of axillary border of scapula
what are the insertion(s) of teres minor greater tubercle of humerus
what are the actions of teres minor lateral rotation extension of the humerus
what is the nerve that innervates teres minor axillary nerve
what are the origin(s) of the levator scapula C1-4 transverse process
what are the insertion(s) of the levator scapula vertebral border of scapula from superior angle to root of spine
what are the actions of the levator scapula elevation downward rotation of scapula
what is the nerve that innervates the levator scapula dorsal scapular nerve and branches of C3,4
what are the origins of rhomboids minor and major minor: C7 and T1 spinous processes major: T2-T5 spinous processes
what are the insertions of the Rhomboids Minor: root of spine of scapula Major: vertebral border of the scapula from root of spine to inferior angle
what are the actions of the rhomboids retraction downward rotation of scapula
what are the origin(s) of the supraspinatus supraspinous fossa of scapula
what are the insertion(s) of the supraspinatous greater tubercle of humerus(superior facet)
what are the actions of the supraspinatous abduction of humerus stabilization of head of humerus
what is the nerve that innervates the supraspinatous suprascapular nerve(C5, 6)
what are the origin(s) of infraspinatous infraspinous fossa of scapula
what are the insertion(s) of the infraspinatous greater tubercle of humerus(middle facet)
what are the actions of the infraspinatous lateral rotation extension of humerus
what is the origin(s) if the subscapularis subscapular fossa of scapula
what are the insertion(s) of the subscapularis lesser tubercle of humerus
what are the actions of the subscapularis medial rotation and adduction of humerus
what are the origin(s) of the pectoralis major clavicular head: medial half of clavicle sternal head: sternum, cartilages of upper 6 ribs
what are the insertion(s) of the pectoralis major lateral lip of bicipital groove of humerus
what are the action of the pectoralis major adduction, horizontal adduction and medial rotation of humerus clavicular head: flexion of humerus sternal head: extension of humerus from a flexed position
what are the origin(s) of the pectoralis minor anterior surface of ribs 3, 4 ,5 near costal cartilages
what is the insertion(s) pectoralis minor coracoid process of scapula o medial border of superior surface
what are the actions of the pectoralis minor protraction, depression, downward rotation of scapula
what is the nerve that innervates the pectoralis minor medial pectoral nerve (C8,T1)
what is the origin(s) of the subclavius 1st rib costocartilage junction
what are the origin(s) of the serratus anterior outer surface of upper 8 ribs
what are the insertion(s) of the serratus anterior vertebral border of scapula-anterior surface
what are the actions of the serratus anterior protraction, upward rotation of scapula, stabilizes scapula against chest wall
what is the origin(s) of the coracobrachialis coracoid process of scapula
what is the insertion(s) of the coracobrachialis middle 1/3 of medial surface of humeral shaft
what are the actions of the coracobrachialis flexion adduction of humerus
what is the origin(s) of the deltoids anterior head: lateral third of clavicle middle: lateral acromion posterior: spine of scapula
what is the insertion(s) of the deltoids deltoid tuberosity of humerus
what is the actions of the deltoids anterior: flexion, horizontal adduction, medial rotation of humerus middle: abduction of humerus to 90 degrees posterior; extension, horizontal abduction, lateral rotation of humerus
what is the origin(s) of the brachialis lower half of anterior shaft of humerus
what is the insertion(s) of the brachialis tuberosity of ulna coronoid process of ulna
what is the actions of the brachialis flexion of the elbow
what is the origin(s) of the bicep brachii short head: coracoid process of the scapula long head: supraglenoid tubercle of scapula
what is the insertion(s) of the bicep brachii tuberosity of radius bicipital aponeurosis
what are the actions of the bicep brachii flexion of the elbow supination of forearm short head: flexion of humerus
Created by: erhardaa