Muscle Chart UE

Trapezius

Action:

-Superior:

-Middle:

-Inferior:

Action:

-Superior: Elevate and superiorly rotate scapula

-Middle: Retract scapula

-Inferior: Depress scapula

Levator Scapulae

Action:

Action: Elevate Scapula

Inferiority rotate scapula

Rhomboid Major

Action:

Action: Elevates Scapula

Retracts Scapula

Inferior rotates scapula

Rhomboid Minor

Action:

Action: Elevates Scapula

Retracts Scapula

Inferior rotates scapula

Pectoralis Minor

Action:

Action: Protract Scapula

Depress Scapula

Seratus Anterior

Action:

Action: Protracts Scapula

Superiorly Rotates Scapula

Stabilizes Scapula

Subclavius

Action:

Action: Stabilizes and depresses clavicle

Latisimus Dorsi

Action:

Action: Extends GH

Adducts GH

Medially Rotates GH joint

Pectoralis Major

Action:

Action: GH flexion

Adduct GH

Medially rotates GH joint

Deltoid

Action:

Anterior Fibers:

Middle Fibers:

Posterior Fibers:

Action:

Anterior Fibers: Flex and medially rotate GH joint

Middle Fibers: GH Abduction

Posterior Fibers: Extend and laterally rotate GH Joint

Coracobrachialis

Origin:

Origin: Coracoid Process

Teres Major

Origin:

Origin: Inferior lateral border

Inferior angle of scapula

Triceps Brachi (long head)

Origin:

Origin: Infraglenoid Tubercle

Biceps Brachii (Long Head)

Origin:

Origin: Supraglenoid Tubercle

Subscapularis

Origin:

Subscapularis

Origin: Subscapular Fossa

Action: Medially Rotate GH Joint

Insertion: Lesser tubercle of humerus

Innervation: Upper Subscapularis Nerve

Lower Subscapularis Nerve

Supraspinatis

Origin:

Action:

Insertion:

Innervation:

Supraspinatis

Origin: Supraspinous fossa

Action: Abduct GH Joint

Insertion: Greater Tubercle of Humerus

Innervation: Suprascpular Nerve

Infraspinatous

Origin:

Action:

Insertion:

Innervation:

Infraspinatous

Origin: Infraspinous fossa

Action: Adducts GH

Laterally rotates GH Joint

Insertion: greater tubercle of humerus

Innervation: Suprascapular nerve

Teres Minor

Origin:

Action:

Insertion:

Innervation:

Teres Minor

Origin: Superior lateral border of the scapula

Action: Adducts GH

Laterally rotates GH Joint

Insertion: greater tubercle of humerus

Innervation: Axillary nerve

Biceps Brachii (Both Heads)

Origin:

Action:

Insertion:

Innervation:

Biceps Brachii (Both Heads)

Origin: Long Head: Supraglenoid tubercle of scapula

Short Head: Coracoid process of scapula

Action: Flex Elbow

STRONG SUPINATOR

Long head: Flex GH

Insertion: Radial Tuberosity

Bicipital Aponeurosis

Innervation: Musculocutanous

Brachialis

Action:

Innervation:

Brachialis

Action: Primary flexor of elbow

Innervation: musculocutaneous

Brachioradalis

Action:

Insertion:

Innervation:

Brachioradalis

Action: Flexes elbow

Insertion: Styloid process of radius

Innervation: Radial Nerve

Triceps Brachii (All 3 heads)

Origin:

Action:

Insertion:

Innervation:

Triceps Brachii (All 3 heads)

Origin: Long Head: Infraglenoid tubercle of scapula

Action: Primary extensor of elbow

Long head of triceps: Extend GH Joint

Insertion: olecranon process of ulna

Innervation: radial nerve

Pronator Teres

Origin:

Action:

Innervation:

Pronator Teres

Origin: Medial epicondyle of humerus

Action: Pronate Forearm

Innervation: Median Nerve

Flexor Carpi Radialis

Origin:

Action:

Innervation:

Flexor Carpi Radialis

Origin: Medial epicondyle of humerus

Action: Flexes Wrist

Abduct Hand

Innervation: Median Nerve

Palmaris Longus

Origin:

Action:

Innervation:

Palmaris Longus

Origin: Medial epicondyle of humerus

Action: Weak Wrist Flexor

Innervation: Median Nerve

Flexor Carpi ulnaris

Origin:

Action:

Innervation:

Flexor Carpi ulnaris

Origin: Medial epicondyle of humerus

Action: Flex Wrist

Adduct Hand

Innervation: Ulnar Nerve

flexor digitorum superficialis

Origin:

Action:

Insertion:

Innervation:

flexor digitorum superficialis

Origin: medial epicondyle of humerus

Action: Flex Wrist

Flex 2nd-5th

Flex MP

Flex PIP

Insertion: Middle Phalanges of finger 2-5

Innervation: Median Nerve

Flexor pollicis longus

Origin:

Action:

Insertion:

Innervation:

Flexor pollicis longus:

Action: Flex MP of thumb

Flex IP of thumb

Insertion: Distal Phalanx of thumb

Innervation: median nerve

Flexor digitorum profundus

Action:

Insertion:

Innervation:

Flexor digitorum profundus

Action: Flex Wrist

Flex 2-5 MP Joint

Flex PIP Joint

Flex DIP Joint

Insertion: Distal Phalanges of 2-5

Innervation: Lateral 1/2 = Median Nerve

medial 1/2 = Ulnar Nerve

Pronator Quadratus

Action:

Innervation:

Pronator Quadratus

Action: Pronates Forearm

Innervation: Median Nerve

Extensor Carpi Radialis longus

Action:

Innervation:

Extensor Carpi Radialis longus

Action: Extensor Wrist

Abducts Hand

Innervation: Radial Nerve

Extensor Carpi Radialis Brevis

Origin:

Action:

Innervation:

Extensor Carpi Radialis Brevis

Origin: Lateral epicondyle of humerus

Action: Extends Wrist

Abducts Hands

Innervation: Radial Nerve

Extensor digitorum

Origin:

Action:

Innervation:

Extensor digitorum

Origin: Lateral epicondyle of humerus

Action: Extends Wrist

Extends 2-5 MP

Extends PIP Joints

Extends DIP Joints

Innervation: Radial Nerve

Extensor digiti minimi

Origin:

Action:

Innervation:

Extensor digiti minimi

Origin: Lateral epicondyle of humerus

Action: Extends Wrist

Extends MP

Extends PIP of finger 5

Innervation: radial nerve

extensor carpi ulnaris

Origin:

Action:

Innervation:

extensor carpi ulnaris

Origin: Lateral epicondyle of humerus

Action: Extends Wrist

Adducts Hand

Innervation: Radial Nerve

Abductor pollicis longus

Action:

Innervation:

Abductor pollicis longus

Action: Abduct thumb

Innervation: Radial Nerve

extensor pollicis brevis

Action:

Innervation:

extensor pollicis brevis

Action: Extends MP of thumb

Innervation: Radial Nerve

Extensor pollicis longus

Action:

Innervation:

Extensor pollicis longus

Action: Extends MP of thumb

Extends IP of thumb

Innervation: Radial Nerve

Extensor indicus

Action:

Innervation:

Extensor indicus

Action: Extends MP of finger 2

Extends PIP of finger 2

Extends DIP of finger 2

Innervation: Radial Nerve

Supinator

Action:

Innervation:

Supinator

Action: Supinates Forearm

Innervation: Radial Nerve

Flexor pollicis brevis

Action:

Innervation:

Flexor pollicis brevis

Action: Flex thumb

Innervation: Median Nerve

Abductor pollicis brevis

Action:

Innervation:

Abductor pollicis brevis

Action: Abducts thumb

Innervation: Median Nerve

Opponens Pollicis

Action:

Innervation:

Opponens Pollicis

Action: Opposes Thumb

Innervation: Median Nerve

flexor digiti minimi brevis

Action:

Innervation:

flexor digiti minimi brevis

Action: Flex Finger 5

Innervation: Ulnar Nerve

Abductor digiti minimi

Action:

Innervation:

Abductor digiti minimi

Action: Abduct finger 5

Innervation: Ulnar Nerve

Opponens digiti minimi

Action:

Innervation:

Opponens digiti minimi

Action: Opposition of finger 5

Innervation: Ulnar Nerve

Lumbricals

Action:

Innervation:

Lumbricals

Action: Flex 2-5 MP Joints

Extends 2-5 PIP and DIP

Innervation: Lateral Lumbrical-Median Nerve

Medial Lumbrical- Ulnar Nerve

Dorsal interossi

Action:

Innervation:

Dorsal interossi

Action: Abducts finger 2-5

Innervation: Ulnar Nerve

Plantar interossi

Action:

Innervation:

Plantar interossi

Action: Adducts finger 2-5

Innervation: Ulnar Nerve

Adductor pollicis

Action:

Innervation:

Adductor pollicis

Action: Adducts thumb

Innervation: Ulnar Nerve

Trapezius

Innervation:

Innervation: CN 11