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HVSMT Upper body Muscles O,I,A,N

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.

Trapezius   I: Upper- lateral third of clavicle, acromion  
Trapezius   I: Middle- spine of Scapula  
Trapezius   I: Lower- Root of spine of Scapula  
Trapezius   O: Extrenal Occipital Protuberance, Ligamentum nuchae, C7-T12 spinous Process  
Trapezius   A: Upper- elevation, upward rotation  
Trapezius   A: Middle- Retraction of the scapula  
Trapezius   A: Lower-Depression, upward rotation of the scapula  
Trapezuis   N: Accessory Nerve (Cranial Nerve) and branches of c3,4  
Latissimus Dorsi   O: Thoracolumbar aponeurosis, lower 6 thoracic spinous processes, Sacrum and iliac crest, lower 3 to 4 ribs, inferior angle of scapula  
Latissimus Dorsi   I: Bicipital groove of humerus  
Latissimus Dorsi   A: Extension, adduction of humerus, Medial rotation  
Latissimus Dorsi   N: Thoracodorsal Nerve (C6,7,8)  
Teres Major   O: Inferior angle of Scapula, Lower third of axillary border of scapula  
Teres Major   I: Medial lip of bicipital groove of humerus  
Teres Major   A: Extension, adduction of humerus, medial rotation  
Teres Major   N: Lower Subscapular Nerve (C5,6)  
Teres Minor   O: Upper 2/3 of axillary border of scapula  
Teres Minor   I: Greater tubercle of Humerus (inferior Facet)  
Teres Minor   A: lateral rotation, extension of humerus  
Teres Minor   N: Axillary Nerve (C5,6)  
Levator Scapula   O: C1-4 transverse processes  
Levator Scapula   I: vertebral Border of scapula from superior angle to root of spine  
Levator Scapula   A: Elevation, Downward rotation of scapula  
Levator Scapula   N: Dorsal scapular nerve (C5) and branches of C3,4  
Rhomboids   O: MInor- C7and T1  
Rhomboids   O: Major- T2-T5  
Rhomboids   I: Minor- root of spine of scapula  
Rhomboids   I: Major- vertebral border of scapula from root of spine to inferior angle  
Rhomboids   A: retraction, downward rotation of scapula  
Rhomboids   N: Dorsal scapular nerve (C5)  
Supraspinatus   O: Supraspinous Fossa of scapula  
Supraspinatus   I: Greater Tubercle of humerus (superior Facet)  
Supraspinatus   A: aBduction of humerus, stabilization of head of humerus  
Supraspinatus   N: Suprascapular nerve (C5,6)  
Infraspinatus   O: infraspinous fossa of scapula  
infraspinatus   greater tubercle of humerus ( middle Facet)  
infraspinatus   A: Lateral rotation, extension of the humerus  
infraspinatus   N: Suprascapular nerve (C5,6)  
Subscapularis   O: subscapular fossa of scapula  
Subscapularis   I: lesser tubercle of humerus  
Subscapularis   A: Medial rotation and aDduction of humerus  
Subscapularis   N: upper and lower subscapular nerve (C5,6)  
Pectoralis Major   O: Clavicular Head- medial half of clavicle  
Pectoralis Major   O: Sternal Head- Sternum, cartilages of upper 6 ribs  
Pectoralis Major   I: lateral lip of bicipital groove of humerus  
Pectoralis Major   A: aDduction, horizontal aDduction and medial rotation of humerus  
Pectoralis Major   A: Clavicular Head- Flextion of humerus  
Pectoralis Major   A: Sternal Head- extension of humerus from a flexed position  
Pectoralis Major   N: Clavicular Head- lateral pectoral nerve (C5,6,7)  
Pectoralis Major   N: Sternal Head- medial pectoral nerve (C8, T1)  
Pectoralis Minor   O: Anterior surface of ribs 3,4,5 near costal cartilages  
Pectoralis Minor   I: Coracoid process of scapula on medial border of superior surface  
Pectoralis Minor   A: Protraction, Depression, downward rotation of scapula  
Pectoralis Minor   N: Medial Pectora nerve (C8, T1)  
Subclavius   O: 1st rib costocartilage junction  
Subclavius   I: inferior shaft of clavicle-middle 1/3  
Subclavius   A: Stabilizes clavicle by moving it medially  
Subclavius   N: nerve to subclavius (C5,6)  
Serratus Anterior   O: Outer surface of 8 upper ribs ( by finger like slips)  
Serratus Anterior   I: Vertebral Border of Scapula-anterior surface  
Serratus Anterior   A: Protraction, upward rotation os scapula, stabilizes scapula against chest wall  
Serratus Anterior   N: Long Thoracic nerve (C5,6,7)  
Deltiods Anterior   O: lateral third of clavicle  
Deltiods Middle   O: lateral Acromion  
Deltiods Posterior   O: spine of scapula  
Deltoids   I: deltoid tuberosity of humerus  
Deltoids Anterior   A: flexion, horizontal aDduction, medial rotation of humerus, forehand tennis  
Deltoids Middle   A: aBduction of humerus to 90 degrees  
Deltiods Posterior   A: Extension, horizontal aBduction, lateral rotation of humerus, backhand tennis  
Deltiods   N: Axillary Nerve (C5,6)  
Triceps Brachii   O: Long Head- infraglenoid tubercle of scapula  
Triceps Brachii   O: Lateral head- posterior humerus above spiral groove  
Triceps Brachii   O: Medial Head- posterior humerus below spiral groove  
Triceps Brachii   I: Olecranon process of ulna  
Triceps Brachii   A: extension of elbow  
Triceps Brachii   A:long head- extension of humerus  
Triceps Brachii   N: radial nerve (C7,8)  
Anconeus   O: lateral epicondyle of humerus  
Anconeus   I: Olecranon process and upper posterior surface of ulna  
Anconeus   A: assists extension of elbow  
Anconeus   N: Radial nerve (C7,8)  
Biceps Brachii   O: Short Head- coracoid process of scapula  
Biceps Brachii   O: Long head- supraglenoid tubercle of scapula  
Biceps Brachii   I: tuberosity of radius, Bicipital aponeurosis  
Biceps Brachii   A: Flexion of elbow, supination of forearm  
Biceps Brachii   A: short head- flexion of humerus  
Biceps brachii   N: Musculocutneous nerve (C5, 6)  
Sternocleidomastoid   O: Sternal Head- manibruium of sternum  
Sternocleidomastoid   O: clavicular head- medial clavicle  
Sternocleidomastoid   I: Mastoid process of temporal bone  
Sternocleidomastoid   A: Bilaterally- flexion of neck  
Sternocleidomastoid   A: Unilaterally- lateral flexion of neck to same side; rotation of head to opposite side  
Sternocleidomastoid   N: Accessory nerve (Cranial nerve XI) (C2,3)  
Scalenus Anterior   O: transverse process of cerical vertebrae C3-6  
Scalenus Medius   O: transverse processes of cervical vertebrae C2-7  
Scalenus Posterior   O: Transverse processes of cerical vertebrae C4-6  
Scalenes   I: first 2 ribs  
Scalenes   A: Bilaterally- raise first 2 ribs during forced inspiration or assist neck flexion  
Scalenes   A: Unilaterally- assits in lateral flexion of head to same side  
Scalenes   N: Ventral rami of cervical nerves 3-8  


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