UE Muscles Flashcards by Kendell Baylor

Latissimus Dorsi attachments

Lower thoracic spinous process, thoracolumbar fascia, iliac crest to
Floor of the intertubercular sulcus of humerus

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Levator Scapulae attachment

Transverse processes of C1-C4 to
Superior angle & superomedial boarder of scapula

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Pectoralis Major Attachments

Clavicular head: clavicle, costal cartilages, sternum
Sternal head: aponeurosis of the external oblique to the lateral lip of the intertubercular sulcus of humerus

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Pectoralis Minor Attachments

From outer surfaces of ribs 3-5 to
Coracoid process

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Rhomboids Attachments

Major: spinous processes T2-5 to medial boarder of scapula
Minor: ligamentum nuchae and spinous processes C7-T1 to medial boarder of the scapula

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Serratus Anterior Attachments

Outer surfaces & superior boarders of upper 8-10 ribs to
Costal surface of the medial boarder of the scapula

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Subclavius Attachments

First rib & cartilage to
Undersurface of the clavicle

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Trapezius Attachment

Superior nuchal line, external occipital protuberance, ligamentum nuchae & cervical + thoracic spinous processes to
Clavicle, acromion & scapular spine

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Deltoid Attachment

Clavicle, acromion & spine of scapula to
Deltoid tuberosity of humerus

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Supraspinatus Attachment

Medial 2/3 of supraspinous fossa to the superior facet of the greater tubercle of humerus & shoulder joint capsule

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Infraspinatus Attachment

Medial 2/3 of infraspinous fossa to
Middle facet of the greater tubercle of the humerus & shoulder joint capsule

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Teres Minor Attachment

Upper 2/3 of dorsal surface of the lateral boarder of scapula to
Inferior facet of the greater tubercle of the humerus & shoulder joint capsule

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Subscapularis Attachment

Subscapular fossa to
Lesser tubercle of humerus

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Teres Major Attachment

Dorsal surface of inferior angle scapula & lower 1/3 of the lateral boarder of the scapula to
Medial lip of the intertubercular sulcus of humerus

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Anconeus Attachment

Lateral epicondyle of humerus to
Lateral surface of olecranon process

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Biceps Brachii Attachment

Short head: Coracoid process to radial tuberosity & deep antebrachial fascia (through bicipital aponeurosis)
Long head: Supraglenoid tubercle to radial tuberosity & deep antebrachial fascia (through bicipital aponeurosis)

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Brachialis Attachment

Distal anterior shaft of humerus & lateral & medial inter muscular septa to
Coronoid process & ulnar tuberosity

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Coracobrachialis Attachment

Coracoid process to
Proximal medial shaft of humerus

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Triceps Brachii Attachment

Long head: Infraglenoid tubercle of scapula
Lateral head: proximal posterolateral shaft of humerus
Medial head: distal posteromedial shaft of humerus
To olecranon process of ulna

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AbductorPollicis Longus Attachment

Proximal posterior radius, ulna & interosseous membrane to
Base of 1st metacarpal & trapezium

Brachioradialis Attachment

Lateral supracondylar ridge of humerus to
Distal radius lateral to styloid process

Extensor Carpi Radialis Brevis

Lateral epicondyle of humerus to
Base of 3rd metacarpal

Extensor Carpi Radialis Longus

Lateral supracondylar ridge of humerus to
Base of 2and metacarpal

Extensor Carpi Ulnaris Attachment

Lateral epicondyle of humerus to
Base of 5th metacarpal

Extensor Digitorum Attachment

Lateral Epicondyle of humerus to Extensor expansion of digits 2-5

Extensor Digiti Minimi Attachment

Lateral epicondyle of humerus to Digital expansion of the 5th digit

Extensor Indicis Attachment

Posterior surface of ulna & interosseous membrane to Digital expansion of 2and digit

Extensor Pollicis Brevis Attachment

Posterior radial surface & interosseous membrane to Base of 1st proximal phalanx

Extensor Pollicis Longus Attachment

Middle 1/3rd of posterior surface of ulna & interosseous membrane to Base of 1st distal phalanx

Flexor Carpi Radialis Attachment

Medial Epicondyle to Palmar aspect of base of 2and metacarpal

Flexor Carpi Ulnaris Attachment

Medial epicondyle of humerus & proximal ulna shaft to Pisiform

Flexor Digitorum Profundus Attachment

Anterior proximal 2/3 of ulna & interosseous membrane to Base of distal phalanges of digits 2-5

Flexor Digitorum Superficialis Attachment

medial epicondyle of humerus to Sides of middle phalanges of digits 2-5

Flexor Pollicis Longus Attachment

Anterior surface of radius & interosseous membrane to Base of distal phalanx of thumb

Palmaris Longus Attachment

Medial epicondyle of humerus to Palmar aponeurosis

Pronator Quadratus Attachment

Anterior surface of the distal ulna to Anterior surface of distal radius

Pronator Teres Attached

Medial epicondyle & ulnar coronoid process to Lateral aspect of radius

Supinator Attachment

Lateral epicondyle of humerus, radial collateral ligament & supinator crest of ulna to Lateral surface of proximal radius

Abductor Digiti Minimi Attachment

Pisiform to Ulnar side of base of proximal phalanx of 5th digit

Abductor Pollicis Brevis Attachment

Transverse carpal ligament to Radial side of base of proximal phalanx of thumb

Abductor Pollicis Attachment

Oblique head: Capitate & 2and and 3rd metacarpals to base of proximal phalanx of thumb Transverse head: palmar aspect of 3rd metacarpal to base of proximal phalanx of thumb

Dorsal interossei Attachment

Adjacent sides of metacarpals to Proximal phalangeal bases & dorsal digital expansions of digits 2-4

Flexor Digiti Minimi Brevis Attachment

Hamate to Ulnar side of the base of the proximal phalanx of the 5th digit

Flexor Pollicis Brevis Attachment

Transverse carpal ligament & trapezium to radial side of base of proximal phalanx of thumb

Lumbricals Attachment

Tendons of flexor digitorum profundus to Radial side of dorsal digital expansions of digits 2-5

Opponens Digiti Minimi Attachment

Hook of hamate to Ulnar margin of shaft of 5th metacarpal

Opponens Pollicis Attachment

Transverse carpal ligament & trapezium to Palmar surface of 1st metacarpal

Palmar Interossei Attachment

Palmar aspect of metacarpals 2,4 &5 to Dorsal digital expansions of digits 2,4, & 5