Muscles of the shouder and arm; attachments
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Origin: SERRATUS ANTERIOR[a]This muscle originates on the R1-R8, laterally and anteriorly.
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Insertion: SERRATUS ANTERIOR[a]This muscle inserts on the costal surface of the vertebral border of the scapula, from superior angle to inferior angle.
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Origin: TRAPEZIUS[a]This muscle originates on the nuchal lines and nuchal ligament an SP’s of C7 to T12.
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Insertion: TRAPEZIUS[a]This muscle inserts on the entire spine of the scapula and the lateral aspect of the clavicle.
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Origin: RHOMBOIDEUS MAJOR[a]This muscle originates on the spinous processes T2-T5.
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Insertion: RHOMBOIDEUS MAJOR[a]This muscle inserts on the vertebral border of the scapula, from the root of the spine to the inferior angle.
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Origin: RHOMBOIDEUS MINOR[a]This muscle originates on the spinous processes C7-T1.
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Insertion: RHOMBOIDEUS MINOR[a]This muscle inserts on the root of the spine of the scapula.
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Origin: LEVATOR SCAPULAE[a]This muscle originates on the Transverse processes C1-C4.
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Insertion: LEVATOR SCAPULAE[a]This muscle inserts on the vertebral border of scapula, from superior angle of scapula to the root of the spine.
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Origin: SUPRASPINATUS[a]This muscle originates on the Supraspinous fossa/scapula.
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Insertion: SUPRASPINATUS[a]This muscle passes under the acromion, and inserts on the greater tubercle/humerus.
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Origin: INFRASPINATUS[a]This muscle originates on the Infraspinous fossa/scapula.
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Insertion: INFRASPINATUS[a]This muscle inserts on the greater tubercle.
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Origin: TERES MINOR[a]This muscle originates on the superior axillary border/scapula; superior to teres major.
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Insertion: TERES MINOR[a]This muscle inserts on the greater tubercle.
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Origin: SUBSCAPULARIS[a]This muscle originates on the subscapular fossa/scapula.
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Insertion: SUBSCAPULARIS[a]This muscle inserts on the lesser tubercle/humerus.
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Origin: PECTORALIS MAJOR[a]This muscle originates on the medial clavicle, inferior border and the sternum and costal cartilage of true ribs.
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Insertion: PECTORALIS MAJOR[a]This muscle inserts on the lateral lip of bicipital groove/humerus.
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Origin: LATISSIMUS DORSI[a]This muscle originates on the thoracolumbar aponeurosis, spinous processes T6/T7-L5.
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Insertion: LATISSIMUS DORSI[a]This muscle inserts on the medial lip of bicipital groove/humerus.
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Origin: DELTOID[a]This muscle originates on the whole spine of the scapula and the lateral clavicle.
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Insertion: DELTOID[a]This muscle inserts on the deltoid tuberosity/humerus.
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Origin: BICEPS BRACHII[a]This muscle originates its long head on the supraglenoid tubercle and the short head on coracoid process/scapula.
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Insertion: BICEPS BRACHII[a]This muscle inserts on the radial tuberosity and the common forearm flexor tendons.
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Origin: BRACHIORADIALIS[a]This muscle originates on the lateral supracondylar ridge/humerus.
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Insertion: BRACHIORADIALIS[a]This muscle inserts on the styloid process/radius.
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Origin: TRICEPS BRACHII[a]This muscle originates on the infraglenoid tubercle/scapula and the proximal, lateral and posterior humerus.
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Insertion: TRICEPS BRACHII[a]This muscle inserts on the olecranon process.
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Action: SERRATUS ANTERIOR[a]This muscle performs protraction and upward rotation of scapula.
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Muscles of the shoulder and arm; attachments – reversed
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Which muscle inserts on the olecranon process?[a] TRICEPS BRACHII
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Which muscle originates on the infraglenoid tubercle/scapula and the proximal, lateral and posterior humerus?[a] TRICEPS BRACHII
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Which muscle inserts on the styloid process/radius?[a] BRACHIORADIALIS
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Which muscle originates on the lateral supracondylar ridge/humerus?[a] BRACHIORADIALIS
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Which muscle inserts on the radial tuberosity?[a] BICEPS BRACHII
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Which muscle originates its long head on the supraglenoid tubercle and the short head on coracoid process/scapula?[a] BICEPS BRACHII
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Which muscle inserts on the deltoid tuberosity/humerus?[a] DELTOID
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Which muscle originates on the whole spine of the scapula and the lateral clavicle?[a] DELTOID
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Which muscle inserts on the medial lip of bicipital groove/humerus?[a] LATISSIMUS DORSI
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Which muscle originates on the thoracolumbar aponeurosis, spinous processes T6/T7-L5?[a] LATISSIMUS DORSI
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Which muscle inserts on the lateral lip of bicipital groove/humerus?[a] PECTORALIS MAJOR
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Which muscle originates on the medial clavicle, inferior border and the sternum and costal cartilage of true ribs?[a] PECTORALIS MAJOR
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Which muscle inserts on the lesser tubercle/humerus?[a] SUBSCAPULARIS
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Which muscle originates on the subscapular fossa/scapula?[a] SUBSCAPULARIS
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Which muscle inserts on the greater tubercle?[a] TERES MINOR
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Which muscle originates on the superior axillary border/scapula; superior to teres major?[a] TERES MINOR
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Which muscle inserts on the greater tubercle?[a] INFRASPINATUS
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Which muscle originates on the Infraspinous fossa/scapula?[a] INFRASPINATUS
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Which muscle passes under the acromion, and inserts on the greater tubercle/humerus?[a] SUPRASPINATUS
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Which muscle originates on the Supraspinous fossa/scapula?[a] SUPRASPINATUS
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Which muscle inserts on the vertebral border of scapula, from superior angle of scapula to the root of the spine?[a] LEVATOR SCAPULAE
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Which muscle originates on the Transverse processes C1-C4?[a] LEVATOR SCAPULAE
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Which muscle inserts on the root of the spine of the scapula?[a] RHOMBOIDEUS MINOR
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Which muscle originates on the spinous processes C7-T1?[a] RHOMBOIDEUS MINOR
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Which muscle inserts on the vertebral border of the scapula, from the root of the spine to the inferior angle?[a] RHOMBOIDEUS MAJOR
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Which muscle originates on the spinous processes T2-T5?[a] RHOMBOIDEUS MAJOR
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Which muscle inserts on the entire spine of the scapula and the lateral aspect of the clavicle?[a] TRAPEZIUS
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Which muscle originates on the nuchal lines and nuchal ligament an SP’s of C7 to T12?[a] TRAPEZIUS
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Which muscle inserts on the costal surface of the vertebral border of the scapula, from superior angle to inferior angle?[a] SERRATUS ANTERIOR
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Which muscle originates on the R1-R8, laterally and anteriorly?[a] SERRATUS ANTERIOR
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Muscles of the shouder and arm; actions
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Action: SUBCLAVIUS[a]This muscle performs stabilization of the clavicle to protect the joints of the shoulder girdle and slight depression of clavicle.
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Action: TRAPEZIUS – Superior fibers with spine fixed[a]This muscle performs elevation, upward rotation of the scapula.
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Action: TRAPEZIUS – Superior fibers with scapula fixed and unilateral contraction[a]This muscle performs lateral flexion and rotation of head to the opposite side.
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Action: TRAPEZIUS – Superior fibers with scapula fixed and bilateral contraction[a]This muscle performs extension/ hyperextension of the neck and head.
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Action: TRAPEZIUS – Middle fibers[a]This muscle besides rhomboids performs retraction of the scapula.
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Action: TRAPEZIUS – lower fibers[a]This muscle performs depression and upward rotation of the scapula.
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Action: TRAPEZIUS – all fibers together[a]This muscle besides rhomboids performs retraction of the scapula.
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Action: RHOMBOIDS[a]This muscle performs retraction and downward rotation.
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Action: LEVATOR SCAPULAE with spine fixed.[a]This muscle performs elevation and downward rotation of scapulae.
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Action: LEVATOR SCAPULAE with the scapula fixed, unilateral contraction.[a]This muscle performs rotation of the neck to the same side with lateral flexion.
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Action: LEVATOR SCAPULAE with the scapula fixed, bilateral contraction.[a]This muscle performs extension/hyperextension of the neck.
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Action: SUPRASPINATUS[a]This muscle helps to initiate abduction of the humerus.
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Action: INFRASPINATUS[a]This SITS muscle performs lateral rotation of the humerus.
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Action: TERES MINOR[a]This SITS muscle performs lateral rotation of the humerus.
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Action: SUBSCAPULARIS[a]This SITS muscle performs medial rotation, some adduction of the humerus.
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COMMON ACTION: SITS muscles:[a]These muscles, as a group, perform stabilization of the head of the humerus.
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Action: PECTORALIS MAJOR clavicular division[a]This muscle performs flexion, adduction, medial rotation, horizontal adduction of the humerus.
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Action: PECTORALIS MAJOR sternal division[a]This muscle performs extension, adduction, medial rotation, horizontal adduction of the humerus.
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Action: LATISSIMUS DORSI[a]This muscle performs extension, horizontal extension, adduction, medial rotation of the humerus.
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Action: TERES MAJOR[a]This muscle performs extension, adduction, and medial rotation of the humerus.
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Action: DELTOID anterior fibers[a]This muscle performs flexion, medial rotation and horizontal flexion of the humerus.
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Action: DELTOID middle fibers[a]This muscle performs abduction of the humerus.
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Action: DELTOID posterior fibers[a]This muscle performs extension, lateral rotation, horizontal abduction, abduction of the humerus.
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Action: CORACOBRACHIALIS[a]This muscle performs adduction, flexion, horizontal flexion of the humerus.
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Action: BICEPS BRACHII[a]This muscle performs flexion and adduction of the humerus and flexion and supination of the elbow.
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Action: BRACHIALIS[a]This muscle performs elbow flexion only.
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Action: TRICEPS BRACHII[a]This muscle performs elbow and humerus extension.
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Action: ANCONEUS[a]This muscle performs extension of the humerus only.
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Action: BRACHIORADIALIS[a]This muscle performs flexion of elbow with forearm in neutral position and returns forearm to neutral position from supinated or pronated position.
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List the elevators of the scapula.[a] upper traps, rhomboids(slightly) and levator scapulae.
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List the depressors of the scapula.[a]pec minor and lower traps.
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List the retractors of the scapula.[a]rhomboids and middle traps.
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List the protractors of the scapula.[a]serratus anterior and pec minor.
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List the upward rotators of the scapula.[a] upper traps, lower traps, and serratus anterior.
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List the downward rotators of the scapula.[a] levator scapula, rhomboids, and pec minor.
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List the flexors of the humerus.[a] pec major, long head of biceps brachii, coracobrachialis, and anterior deltiod.
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List the extensors of the humerus.[a] pectoralis major, latissimus dorsi, long head of triceps, teres major and posterior deltoid.
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List the horizontal flexors of the humerus.[a] pectoralis major, coracobrachialis and anterior deltoid.
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List the horizontal extensors of the humerus.[a] pectoralis major, lats dorsi, posterior deltoid and teres major.
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List the abductors of the humerus.[a] supraspinatus and deltoid.
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List the adductors of the humerus.[a] pectoralis major, lats dorsi, teres major, triceps, and coracobrachialis.
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List the medial rotators of the humerus.[a] subscapularis, anterior deltoid, lats dorsi, pectoralis major and teres major.
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List the lateral rotators of the humerus.[a] infraspinatus, teres minor and posterior deltoid.
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Muscles of the shouder and arm; actions reversed
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Which action do infraspinatus, teres minor and posterior deltoid have in common?[a]These are the lateral rotators of the humerus.
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Which action do subscapularis, anterior deltoid, lats dorsi, pectoralis major and teres major have in common?[a]These are the medial rotators of the humerus.
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Which action do pectoralis major, lats dorsi, teres major, triceps, and coracobrachialis have in common?[a]These are the adductors of the humerus.
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Which action do supraspinatus and deltoid have in common?[a]These are the abductors of the humerus.
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Which action do pectoralis major, lats dorsi, posterior deltoid and teres major have in common?[a]These are the horizontal extensors of the humerus.
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Which action do pectoralis major, coracobrachialis and anterior deltoid have in common?[a]These are the horizontal flexors of the humerus.
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Which action do pectoralis major, latissimus dorsi, long head of triceps, teres major and posterior deltoid have in common?[a]These are the extensors of the humerus.
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Which action do pec major, long head of biceps brachii, coracobrachialis, and anterior deltiod have in common?[a]These are the flexors of the humerus.
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Which action do levator scapula, rhomboids, and pec minor have in common?[a]These are the downward rotators of the scapula.
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Which action do upper traps, lower traps, and serratus anterior have in common?[a]These are the upward rotators of the scapula.
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Which action do serratus anterior and pec minor have in common?[a]These are the protractors of the scapula.
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Which action do rhomboids and middle traps have in common?[a]These are the retractors of the scapula.
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Which action do pec minor and lower traps have in common?[a]These are the depressors of the scapula.
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Which action do upper traps, rhomboids(slightly) and levator scapulae have in common?[a]These are the elevators of the scapula.
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Which muscle performs flexion of elbow with forearm in neutral position and returns forearm to neutral position from supinated or pronated position?[a] BRACHIORADIALIS
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Which muscle performs extension of the humerus only?[a] ANCONEUS
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Which muscle performs elbow and humerus extension?[a] TRICEPS BRACHII
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Which muscle performs elbow flexion only?[a] BRACHIALIS
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Which muscle performs flexion and adduction of the humerus and flexion and supination of the elbow?[a] BICEPS BRACHII
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Which muscle performs adduction, flexion, horizontal flexion of the humerus?[a] CORACOBRACHIALIS
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Which muscle performs extension, lateral rotation, horizontal abduction, abduction of the humerus?[a] DELTOID posterior fibers
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Which muscle performs abduction of the humerus?[a] DELTOID middle fibers
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Which muscle performs flexion, medial rotation and horizontal flexion of the humerus?[a] DELTOID anterior fibers
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Which muscle besides lats performs extension, adduction, m. rotation of the humerus?[a] TERES MAJOR
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Which muscle performs extension, horizontal extension, adduction, medial rotation of the humerus?[a] LATISSIMUS DORSI
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Which muscle performs extension, adduction, medial rotation, horizontal adduction of the humerus?[a] PECTORALIS MAJOR sternal division
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Which muscle performs flexion, adduction, medial rotation, horizontal adduction of the humerus?[a] PECTORALIS MAJOR clavicular division
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Which muscles, as a group, perform stabilization of the head of the humerus?[a] SITS muscles:
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Which SITS muscle performs medial rotation, some adduction of the humerus?[a] SUBSCAPULARIS
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Which SITS muscle performs lateral rotation of the humerus?[a] TERES MINOR
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Which SITS muscle performs lateral rotation of the humerus?[a] INFRASPINATUS
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Which muscle helps to initiate abduction of the humerus?[a] SUPRASPINATUS
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Which muscle performs retraction and downward rotation?[a] RHOMBOIDS
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Which muscle besides rhomboids performs retraction of the scapula?[a]middle TRAPEZIUS
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Which muscle performs depression and upward rotation of the scapula?[a] TRAPEZIUS – lower fibers
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Which muscle performs extension/ hyperextension of the neck and head?[a] TRAPEZIUS – Superior fibers with scapula fixed and bilateral contraction
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Which muscle performs lateral flexion and rotation of head to the opposite side?[a] TRAPEZIUS – Superior fibers with scapula fixed and unilateral contraction
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Which muscle performs elevation, upward rotation of the scapula?[a] TRAPEZIUS – Superior fibers with spine fixed
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Which muscle performs stabilization of the clavicle to protect the joints of the shoulder girdle and slight depression of clavicle?[a] SUBCLAVIUS
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