Muscles of Pectoral Girdle and Upper Limbs

Action, origin, and insertion

What is the action of pectoralis minor

depress scapula

What is the insertion of pectoralis minor

coracoid process of scapula

What is the action of Rhomboid major and minor

adduct and downward rotation of scapula

what is the insertion of rhomboid major and minor

medial (vertebral) border of scapula

What is the action of serratus anterior

protract and rotate scapula

What is the action of Upper trapezius

elevate scapulae (shrug shoulders)

What is the origin of upper trapezius

occipital bone and ligamentum nuchae

what is the insertion of upper trapezius

lateral end of clavicale

What is the action of middle trapezius

adduct (retract) scapulae (pulling shoulders back)

What is the origin of middle trapezius

spinous process of thoracic vertebrae

what is the insertion of middle trapezius

acromion of scapula

What is the action of lower trapezius

retract and depress scapula (shoulders back and down)

What is the origin of trapezius lower

spinous process of thoracic vertebrae

What is the insertion of trapezius lower

scapular spine

What is the action of coracobrachilis

flex and adduct brachium

What is the origin of coracobrachilis

coracoid process of scapula

what is the action of deltoid anterior

Flex and medially rotate brachium

what is the origin of deltoid anterior

Clavicle’s lateral end

What is the insertion of deltoid anterior

deltoid tuberosity of humerus

What is the action of deltoid middle

abduct humerus

what is the origin of deltoid middle

Acromion of scapula

what is the insertion of deltoid middle

deltoid tuberosity of humerus

What is the action of deltoid posterior

extend and laterally rotate brachium

what is the origin of deltoid posterior

scapular spine

What is the insertion of deltoid posterior

deltoid tuberosity of humerus

What is the action of supraspinatus

abduct brachium

what is the origin of supraspinatus

supraspinous fossa of scapula

what is the insertion of supraspinatus

greater tubercle of humerus

What is the action of Infraspinatus

laterally rotate brachium

What is the origin of infraspinatus

infraspinous fossa of scapula

What is the insertion of infraspinatus

greater tubercle of humerus

What is the the action of teres minor

laterally rotate and adduct brachium

What is the origin of teres minor

lateral border of scapula

What is the insertion of terse minor

greater tubercle of humerus

What is the action of subscapularis

Medially rotate brachium

What is the origin of subscapularis

subscapular fossa of scapula

What is the insertion of subscapularis

lesser tubercle of humerus

What is the action of teres major

extend and medially rotate brachium

What is the origin of terse major

inferior angle of scapula

What is the insertion of terse major

intertubercular sulcus of humerus

What is the action of latissimus dorsi

extend, adduct, medially rotate brachium

What is the insertion of latissimus dorsi

intertubercular sulcus of humerus

What is the action of pectoralis major

flex, adduct, medially rotate brachium

What is the insertion of pectoralis major

humerus at bicipital groove

What is the action of biceps brachii, long head

flex brachium and flex/supinate anterbrachium

What is the origin of biceps brachii, long head

supraglenoid tubercle of scapula

What is the insertion of bicpes brachii, long head

radial tuberosity

What is the action of biceps brachii short head

flex brachium, flex and supinate antebrachium

What is the origin of biceps brachii short head

coracoid process of scapula

What is the insertion of biceps brachii short head

radial tuberosity

What is the action of brachialis

flex antebrachium

What is the insertion of brachialis

ulnar tuberosity and coronoid process of ulna

What is the action of brachiordialis

flex antebrachium

What is the insertion of brachioradialis

styloid process of radius

What is the action of triceps brachii, long head

extend antebrachium and adduct brachium

What is the origin of triceps brachii long head

Infraglenoid tubercle of scapula

What is the insertion of triceps brachii long head

olecranon of ulna

What is the action of triceps brachii lateral head

exten antebrachium

What is the insertion of triceps brachii lateral head

olecranon of ulna

What is the action of triceps brachii medial head

extend antebrachium

What is the insertion of triceps brachii medial head

olecranon of ulna

What is the action of pronator teres

pronate antebrachium

What is the origin of pronator teres

medial epicondyle of humerus, coronoid process of ulna

What is the action of supinator

supinate antebrachium

What is the origin of supinator

lateral epicondyle of humerus

What is the action flexor carpi radialis

flex and abduct carpus

What is the origin of flexor carpi radialis

medial epicondyle of humerus

What is the action of flexor carpi ulnaris

flex and adduct carpus

What is the origin of flexor carpi ulnaris

medial epicondyle of humerus

What is the action of palmaris longus

flex carpus

What is the action of extensor carpi radialis

extend and abduct carpus

What is the origin of extensor carpi radialis

lateral epicondyle of humerus

What is the action of extensor carpi ulnaris

extend and adduct carpus

What is the origin of extensor carpi ulnaris

lateral epicondyle of humerus

What is the action of extensor digitorum

extend carpus and extend digits of hand

What is the origin of extensor digitorum

lateral epicondyle of humerus

What is the action of extensor retinaculum? (idk if this is right)

extend carpus and extend digit 5

What is the origin of extensor retinaculum

lateral epicondyle of humerus