Trapezius I (descending) OI
O: Occipital bone & Upper cervical C1-3 (SP)
I: Lateral clavicle
Trapezius I (descending) Action
Up rotate scapula Elevate scapula Add/ Retract scapula Ipsilat lat flex cspine Contra rot cspine
Trapezius I (descending) Innervation
Cranial nerve XI (acessory nerve) & Ventral rami C2-4
Trapezius II (descending) OI
O: Lower cervical C4-7 SP
I: Acromion
Trapezius II (descending) Action
Up rotate scapula Elevate scapula Add/Retract scapula Ipsilat lat flex cervical spine Contra rot cervical spine
Trapezius II (descending) Innervation
Cranial nerve XI (accesory nerve) & Ventral rami C2-4
Trapezius III (transverse) OI
O: Upper thoracic T1-4 SP
I: Scapular spine
Trapezius III (transverse) Action
Add/retract scap
Trapezius III (transverse) Innervation
Canrial nerve XI (accesory) & Ventral rami C2-4
Trapezius IV (ascending) OI
O: Lower thoracic T5-12 SP
I: Medial scapular spine
Trapezius IV (ascending) Action
Up rotate scap
Depress scap
Add/retreact scap
Trapezius IV (ascending) Innervation
Cranial nerve XI (accessory nerve) & Ventral rami C2-4
Rhomboid Major
OI
O: Upper thoracic T1-4 SP
I: Medial border scapula below scapular spine
Rhomboid Major
Action
Add/Retract scap
Elevate scap
Down rotate scap
Rhomboid Major
Innervation
Dorsal scapular nerve
Rhomboid Minor
OI
O: Lower cervical C6-7 SP
I: Medial border scapula above scapular spine
Rhomboid Minor
Action
Add/Retract scapula
Elevate scapula
Down rotate scap
Rhomboid Minor
Innervation
Dorsal scapular nerve
Levator Scapulae
OI
O: Upper cervical C1-4 Transverse Process
I: Superior angle scapula
Levator Scapulae
Action
Elevate scap
Down rotate scap
Levator Scapulae
Innervation
Dorsal scap nerve
Sternocleidomastoid
OI
O: Manubrium & Medial clavicle
I: Mastoid process
Superior nuchal line
Sternocleidomastoid
Action
Ipsilat lat flex cerv spine
Contra rot cerv spine
Extension (bilat)
Sternocleidomastoid
Innervation
Cranial nerve XI (accessory nerve) & Ventral rami C1-2
Subclavius
OI
O: Superiod surface 1st rib
I: Inferior, lateral surface of clavicle
Subclavius
Action
Stabilize clavicle
Subclavius
Innervation
Nerve to subclavius
Pectoralis Minor
OI
O: Anterior surface ribs 3-5
I: Coracoid process scap
Pec Minor
Action
Ant tip scap
Abd/Protract scap
Down rotate scap
Depress
Pec Minor
Innervation
Medial and lateral pectoral nerves
Serratus Anterior: Superior
OI
O: Lateral surface ribs 1-5
I: Medial border scapula
Superior angle
Serratus Anterior: Superior
Action
Abd/Protract scapula
Down rotate
Stabilize medial border
Elevate
Serratus Anterior: Superior
Innervation
Long thoracic nerve
Serratus Anterior: Inferior
OI
O: Lateral surface ribs 5-9
I: Medial border scapula
Inferior Angle
Serratus Anterior: Inferior
Action
Abd/Protract scapula
Up rotate
Stabilize medial border
Depress
Serratus Anterior: Inferior
Innervation
Long thoracic nerve
Supraspinatus
OI
O: Supraspinous fossa
I: Greater tuberosity humerous
Supraspinatus
Action
Abd GH
Supraspinatus
Innervation
Suprascapular nerve
Infraspinatus
OI
O: Infraspinous fossa
I: Greater tuberosity humerus
Infraspinatus
Action
ER GH
Horiz abduct GH
Infraspinatus
Innervation
Suprascapular nerve
Teres minor
OI
O: Lateral border scapula
I: Greater tuberosity humerus
Teres minor
Action
ER GH
Horz abd GH
Teres minor
Innervation
Axillary nerve
Subscapularis
OI
O: Subscapular fossa
I: Lesser tuberosity humerus
Subscapularis
Action
IR GH
Horz add GH
Subscapularis
Innervation
Upper and lower subscap nerves
Anteriod deltoid
OI
O: Lateral clavicle
I: deltoid tuberosity humerus
Anteriod deltoid
Action
Add GH60
Flex GH
IR GH
Horz add GH
Anterior deltoid
Innervation
Axillary nerve
Middle deltoid
OI
O: Acromion
I: Deltoid tuberosity humerus
Middle deltoid
ACtion
Abd GH
Middle deltoid
Innervation
Axillary nerve
Posterior deltoid
OI
O: Scapular spine
I: Deltoid tuberosity humerus
Posterior deltoid
Action
Add GH60
Ext GH
ER GH
Horz Abd GH
Posterior deltoid
Innervation
Axillary nerve
Latissimus Dorsi
OI
O: Lower thoracic T7-T12 SP Thorocolumbar fascia Posterior iliac crest Ribs 9-12 Inferior scapular angle
I: Medial border bicipital groove
Latissimus Dorsi
Action
Add GH Ext GH IR GH Horz abd GH Retract scapula Down rotate scapula Depress scapula
Latissimus Dorsi
Innervation
Thoracodorsal nerve
Teres major
OI
O: Inferior angle scapula
I: Medial border bicipital groove
Teres major
Action
Add GH
Ext GH
IR GH
Horz Abd GH
Teres major
Innervation
Lower subscapular nerve
Pectoralis major: Clavicular
OI
O: Medial clavicle
I: Lateral border bicipital groove
Pectoralis major: Clavicular
Action
IR GH
Flex GH
Horz add GH
Add GH90
Pectoralis major: Clavicular
Innervation
Medial and lateral pectoral nerves
Pectoralis major: Sternal
OI
O: Sternum
Costal cartilages of rbs 2-6
I: Lateral border bicipital groove
Pectoralis major: Sternal
Action
Ext GH>30flex Flex GH if hyeperflexed IR GH Horz add GH Add GH Protract Scapula Down rotate scapula
Pectoralis major: Sternal
Innervation
Medial and lateral pectoral nerves
Coracobrachialis
OI
O: Coracoid process scapula
I: Medial humerus
Coracobrachialis
Action
Flex GH
Add GH
Horz Add GH
Coracobrachialis
Innervation
Musculocutaneous nerve
Triceps Brachii: Long head
OI
O: Infraglenoid tubercle scapula
I: Olecranon
Triceps Brachii: Long head
Action
Ext elbow
Ext GH
Triceps Brachii: Long Head
Innervation
Radial nerve
Triceps Brachii: Medial head
OI
O: Distal posterior surface humerus
I: Olecranon
Triceps Brachii: Medial head
Action
Ext elbow
Triceps brachii: Medial head
innervation
Radial nerve
Triceps Brachii: Lateral head
OI
O: Proximal posterior surface humerus
I: Olecranon
Triceps Brachii: Lateral head
Action
Ext elbow
Triceps Brachii: Lateral head
Innervation
Radial nerve
Aconeus
OI
O: Lateral epicondyle humerus
O: Olecrenon
Aconeus
Action
Ext elbow
Aconeus
Innervation
Radial nerve
Brachialis
OI
O: Distal anterior humerus
I: Ulnar tuberosity
Brachialis
Action
Flex elbow
Brachialis
Innervation
Musculocutaneous nerve
Biceps brachii: Long head
OI
O: Supraglenoid tubercle scapula
I: Radial tuberosity
Biceps brachii: Long head
Action
Flex elbow
Supinate RU
Flex GH
Biceps brachii: Long head
Innervation
Musculocutaneous nerve
Biceps brachii: short head
OI
O: Coracoid process scapula
I: Radial tuberosity
Biceps brachii: short head
Action
Flex elbow
Supinate RU
Flex GH
Biceps brachii: Short head
Innervation
Musculocutanous nerve
Brachioradialis
IO
O: Lateral supracondylar ridge of humerus
I: Styloid process radius
Brachioradialis
Action
Flex elbow
Pronate/supinate RU
Brachioradialis
Innervation
Radial nerve
Extensor carpi radialis longus
OI
O: Lateral supracondylar ridge of humerus
I: Base 2nd metacarpal
Extensor carpi radialis longus
Action
Ext and radial deviate wrist
Extensor carpi radialis longus
Innervation
Deep radial nerve
Extensor carpi radialis brevis
OI
O: Lateral epicondyle of humerus
I: Base 3rd
Extensor carpi radialis brevis
Action
Extend and radial dev wrist
Extensor carpi radialis brevis
Innervation
Deep radial nerve
Supinator
OI
O: Lateral epicondyle humerus
Supinator crest ulna
I: Lateral radius
Supinator
Action
Supinate RU
Supinator
Innervation
Deep radial nerve
Extensor digitorum
OI
O: Lateral epicondyle humerus
I: Middle & distal phalange 2-5
Extensor digitorum
Action
Ext 2-5 MCP and IPs
Ext wrist
Extensor digitorum
Innervation
Posterior interosseous (radial nerve)
Extensor digiti mini
OI
O: Lateral epicondyle humerus
I: 5ht middle & distal phalange
Extensor digiti minimi
Action
Innervation
Exten 5th MCP, IPs
Posterior interossei (radial)
Extensor carpi ulnaris
OI
O: Lateral epicondyle humerous
Posterior ulna
I: Base 5th MC
Extensor carpi ulnaris
Action
Ext & uln dev wrist
Extensor carpi ulnaris
Innervation
Posterior interossei (radial nerve)
Abductor pollicis longus
OI
O: Posterior radius
Posterior ulna
Interossesous membrane
I: Base 1st MC
Abductor pollicis longus
Action
Abd 1st CMC
Abductor pollicis longus
Innervation
Posterior interossei (radial nerve)
Extensor pollicis brevis
OI
O: Posterior radius
IO membrane
I: Base 1st prox phalanx
Extensor pollicis brevis
Action
Ext 1st CMC &MCP
Extensor pollicis brevis
Innervation
Posterior Interossei (radial nerve)
Extensor pollicis longus
OI
O; Posterior ulna
IO membrane
I: Base 1st distal phalanx
Extensor pollicis longus
Action
Ext 1st CMC, MCP, IP
Extensor pollicis longus
Innervation
Posterior interossei (radial nerve)
Extensor indicis
OI
O: Posterior ulna
IO membrane
I: 2nd middle and distal phalance
Extensor indicis
Action
Ext 2nd MCP, POP, DIP
Ext wrist
Extensor Indicis
Innervation
Posterior interossei (radial nerve)
Pronator teres
OI
O: Medial epicondyle humerus
Coronaoid process ulna
I: Lateral surface radius
Pronator teres
Action
Pronate RU
Pronator teres
Innervation
Median nerve
Flexor digitorum superficialis
OI
O: Medial epicondyle humerus
Coronoid process ulna
I: Side middle phalanges 2-5
Flexor digitorum superficialis
Action
Flex 2-5 MCP, PIP
Flex wrist
Flexor digitorum superficialis
Innervation
Median nerve
Flexor carpi radialis
OI
O: Medial epicondyle humerus
I: Base 2nd MC
Flexor carpi radialis
Action
Flex wrist
Rad dev wrist
Flexor carpi radialis
Innervation
Median nerve
Flexory carpi ulnaris
OI
O: Medial epicondyle humerus
Olecrenon
I: Pisiform
Hook of hamate
Flexor carpi ulnaris
Action
Flex wrist
Uln dev wrist
Flex carpi ulnaris
Innervation
Ulnar nerve
Palmaris longus
OI
O: Medial epicondyle humerus
I: Palmar aponeuroisis
Palmaris longus
Action
Flex wrist
Palmaris longus
Innervation
Median nerve
Flexor digitorum profundus
OI
O: Prox anterior ulna
IO
I: Distal phalanges 2-5
Flexor digitorum profundus
Action
Flex wrist
FLex MCP, PIP, DIP 2-5
Flexor digitorum profundus
Innervation
Digits 2&3: Ant interossei (median nerve)
Digits 4&5: Ulnar nerve
Flexor pollicis longus
OI
O: Anterior radius
IO membrane
I: Distal 1st phalanx
Flexor pollicis longus
Action
Flex 1st CMC, MCP, IP
Flex wrist
Flexor pollicis longus
Innervation
Anterior interossei (median nerve)
Pronator quadratus
OI
O: Distal anterior surface ulna
I: Distal anterior surface radius
Pronator quadratus
Action
Pronate RU
Pronator quadratus
Innervation
Anterior interossei (median nerve)
Lumbricals (1-4)
OI
O: Radial sides tendons of flexor digitorum profundus
I: Dorsal digital expansions 2-5
Lumbricals (1-4)
Action
Flex MCP
Extend IP
Lumbricals (1-4)
Innervation
1st&2nd: Median nerve
3rd&4th: Deep ulnar nerve
Dorsal inertossei (1-4) IO
O: 2 heads adjacent sides 1st-5th MC
I: Base 2nd, 3rd, 4th prox phalange
Distal digital expansion
DOrsal interossei (1-4) Action
Abd MCP 2-4
Dorsal Interossei (1-4) Innervation
Deep ulnar nerve
Palmar interossei (1-3) OI
O: 1st: ulnar side 2nd MC
2nd: rad side 4th MC
3rd: Rad side 5th MC
I: Base of associated 2nd, 4th, & 5th prox phalange
Dorsal digital expansions
Palmar interossei (1-3) Action
Adduct MCP 2, 4, &5
Palmar interossei (1-3) Innervation
Deep ulnar nerve
Abductor pollicis brevis
OI
O: Flexor retinaculum
Scaphoid
Trapezium
I: Base 1st prox phalanx
Abductor pollicis brevis
Action
Abd thumb
Abductor pollicis brevis
Innervation
Recurrent median
Adductor pollicis: Transverse
OI
O: 3rd MC
I: Base 1st prox phalanx
Adductor pollicis: Transverse
Action
Adduct thumb
Adductor pollicis: Transverse
Innervation
Deep ulnar nerve
Adductor pollicis: Oblique
OI
O: base 2nd MC
Capitate
I: Base 1st prox phalanx
Adductor pollicis: Oblique
Action
Adduct thumb
Adductor pollicis: Oblique
Innervation
Deep ulnar nerve
Flexor pollicis brevis
OI
O: Flexor retinaculum
Capitate & trapezium
I: Base 1st prox phalanx
Flexor pollicis brevis
Action
Flex thumb
Flexor pollicis brevis
Innervation
Reccurent median (ulnar)
Opponens pollicis
OI
O: Trapezium
I: 1st MC
Opponens pollicis
Action
Opposition of thumb
Opponens pollicis
Innervation
Recurrent median
Abductor digit minimi
OI
O: Pisiform
I: BAse 5th prox phalanx
Abductor digit minimi
Action
Abd 5th MCP
Abductor digit minimi
Innervation
Deep ulnar nerve
Flexor digit minimi
OI
O: Hook of hamate
Flexor retinaculum
I: Base 5th prox phalanx
Flexor giditi minimi
Action
Flex 5th MCP
Flexor digiti minimi
Innervation
Deep ulnar nerve
Opponens digiti minimi
OI
O: Hook of hamate
I: 5th MC
Opponens digit minimi
Action
Opposition 5th digit
Opponens digiti minimi
Innervation
Deep ulnar nerve
Palmaris brevis
OI
O: Plamar aponeurosis
I: Skin hyperthenar eminence
Palmaris brevis
Action
Tenses skin of palm
Palmaris brevis
Innervation
SUperficial ulnar nerve