muscle grouping

upper extremity

what muscles originate in the clavicle

• pectoralis major

• deltoid

what muscles originate on the scapula

• teres minor

• subscapularis

• teres major

what muscles insert on the greater tubercle of humerus

• supraspinatus

• infraspinatus

• teres minor

what muscle(s) are innervated by medial pectoral nerve

pectoralis major

pectoralis minor

what muscles are innervated by suprascapular nerve (c5- c6)

supraspinatus & infraspinatus

what muscles are innervated by the lower subscapular nerve (c5-c7)

subscapularis & teres major

what muscles are innervated by axillary nerve (c5-c6)

teres minor & deltoid

what muscles flex the humerus

clavicular heads: pectoralis major & deltoid

what muscles ABDUCTS the arm

acromial head of deltoid

supraspinatus

what muscles medially rotates the humerus

deltoid (clavicular head)

teres major

subscapularis

pectoralis major (sternocoastal and clavicular head)

what muscles laterally rotate the humerus

infraspinatus

teres minor

what muscles medially rotate the humerus

deltoid (clavicular head)

latissimus dorsi

subscapularis

teres major

pectoralis major (sternocostal + clavicular heads)

what muscles ADDUCTS the arm

latissimus dorsi

teres major

pectoralis major (clavicular + sternocostal head)

what muscles extends the arm

teres major

deltoid (spinal head)

what muscles stabilizes humerus in glenoid cavity

supraspinatus

infraspinatus

teres minor

subscapularis

what muscles originate on the coracoid process

biceps brachii

coracobrachialis

what muscles are innervated by the musculocutaneous nerve (c5 c6 c7)

biceps brachii

brachialis

coracobrachialis

what what muscles flex the shoulder

biceps brachii

coracobrachialis

what muscles flex the elbow

biceps brachii

brachialis