Upper Muscles Actions/Origins/Insertions/Innervations

movement of orbicularis oculi

movement of orbicularis oculi

closes eye

innervation of orbicularis oculi

cranial nerve VII (facial)

movement of orbicularis oris

compresses and purses lips (kissing)

innervation of orbicularis oris

cranial nerve VII (facial)

origin of masseter

zygomatic arch

insertion of masseter

mandible

movement of masseter

prime mover of mandible elevation

innervation of masseter

cranial nerve V (trigeminal)

origin of sternocleidomastoid

sternum, clavicle

insertion of sternocleidomastoid

mastoid process of temporal bone

movement of sternocleidomastoid

flexes neck and laterally rotates head

movement of temporalis

elevates and retracts mandible

innervation of temporalis

cranial nerve V (trigeminal)

movement of erector spinae group

extend the head, neck, and vertebral column

movement of trapezius

elevates, depresses, and retracts scapula

movement of rhombdoid major

elevates and retracts (adducts) scapula

movement of levator scapulae

elevates and inferiorly rotates scapula

innervation of levator scapulae

cervical nerves C3 and C4

movement of serratus anterior

protracts and superiorly rotates scapula

origin of pectoralis major

clavicle, sternum, ribs

insertion of pectoralis major

humerus

movement of pectoralis major

adducts and medially rotates arm

innervation of pectoralis major

lateral pectoral nerve (C5-C7)

origin of pectoralis minor

ribs

insertion of pectoralis minor

coracoid process of scapula

movement of pectoralis minor

protracts and depresses scapula

innervation of pectoralis minor

medial pectoral nerve (C8-T1)

origin of deltoid

clavicle, scapula

insertion of deltoid

deltoid tuberosity of humerus

movement of deltoid

prime mover of arm abduction

origin of teres major

scapula

insertion of teres major

lesser tubercle of humerus

movement of teres major

extends, adducts, and medially rotates arm

origin of teres minor

scapula

insertion of teres minor

greater tubercle of humerus

movement of teres minor

adducts and laterally rotates arm

origin of latissimus dorsi

vertebrae, ribs, iliac crest of pelvic girdle

insertion of latissimus dorsi

humerus

movement of latissimus dorsi

adducts and medially rotates arm

origin of biceps brachii

supraglenoid tubercle of scapula

insertion of biceps brachii

radial tuberosity of radius

movement of biceps brachii

flexes arm and forearm

innervation of biceps brachii

musculocutaneous nerve (C5-C6)

origin of triceps brachii

infraglenoid tubercle of scapula

insertion of triceps brachii

olecranon process of ulna

movement of triceps brachii

prime mover of forearm extension

origin of brachioradialis

lateral epicondyle of humerus

insertion of brachioradialis

styloid process of radius

movement of brachioradialis

flexes forearm

movement of brachialis

prime mover of forearm flexion

movement of flexor carpi ulnaris

flexes wrist

movement of extensor carpi ulnaris

extends wrist

movement of flexor carpi radialis

flexes wrist

movement of extensor carpi radialis longus

extends wrist

movement of extensor carpi radialis brevis

extends wrist

movement of supinator

supinates forearm

movement of pronator teres

pronates forearm

movement of palmaris longus

flexes wrist