Surface Anatomy - Practical 1 Flashcards by Daniel Shelton

Deltoid

A: All fibers - ABDUCT /// Anterior Fibers - FLEX, medially rotate, & horizontally ADduct /// Posterior Fibers - extend, laterally rotate, and HORIZONTAL ABDUCTION (shoulder)

O: Lateral 1/3 of clavicle, acromion, & spine of scapula

I: Deltoid tuberosity

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Trapezius (Upper fibers)

A: Bilaterally - extend the head & neck /// Unilaterally - laterally flex (head & neck to same side), rotate (head & neck to opposite side), ELEVATE and upwardly rotate (scapula)

O: External occipital protruberance, medial portion of superior nuchal line of occiput, ligamentum nuchae and spinous processes of C7 - T12

I: Lateral 1/3 of clavicle, acromion & spine of scapula

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Trapezius (Middle and Lower fibers)

A: Middle fibers - ADDUCT & stabilize (scapula) /// Lower fibers - DEPRESS & ADDUCTION (scapula)

O: External occipital protruberance, medial portion of superior nuchal line of occiput, ligamentum nuchae and SPs of C7-T12

I: Lateral 1/3 of clavicle, acromion & spine of scapula

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Latissimus Dorsi

A: EXTEND, ADduct, and medially rotate (shoulder)

O: Inferior angle of scapula, SPs of T7-T12, last 3 or 4 ribs, thoracocolumbar aponeurosis and posterior iliac crest

I: Intertubercular groove of humerus

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Teres Major

A: EXTEND, ADduct, and medially rotate (shoulder)

O: Inferior angle and lower 1/3 of lateral border of scapula

I: Crest of lesser tubercle of humerus

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Supraspinatus

A: ABduct (shoulder) and stabilize (shoulder joint)

O: Supraspinous fossa of scapula

I: Greater tubercle of the humerus

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Infraspinatus

A: Laterally rotate, ADduct (shoulder) & stabilize (shoulder joint)

O: Infraspinous fossa of scapula

I: Greater tubercle of the humerus

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Teres Minor

A: Laterally rotate, ADduct (shoulder) & stabilize (shoulder joint)

O: Upper 2/3 of lateral border of scapula

I: Greater tubercle of the humerus

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Subscapularis

A: Medially rotate (shoulder) & stabilize (shoulder joint)

O: Subscapular fossa of scapula

I: Lesser tubercle of humerus

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Rhomboid Major

A: ADduct & downwardly rotate (scapula)

O: SPs of T2-T5

I: Medial border of scapula between spine and inferior angle

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Rhomboid Minor

A: ADduct & downwardly rotate (scapula)

O: SPs of C7-T1

I: Upper portion of medial border of scapula, across from spine

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Levator Scapula

A: Scapular Elevation

O: TPs of C1-C4

I: Medial border of scapula, between superior angle and superior portion of spine of scapula

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Serratus Anterior

A: Scapular ABduction & upward rotation

O: External surfaces of upper 8 or 9 ribs

I: Anterior surface of medial border of the scapula

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Pectoralis Major

A: HORIZONTALLY ADDUCTION

O: Medial half of clavicle, sternum and cartilage of 1-6 ribs

I: Crest of greater tubercle of humerus

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Pectoralis Minor

A: DOWNWARDLY ROTATE (scapula)

O: 3rd, 4th, & 5th ribs

I: Coracoid process

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Biceps brachii

A: Flex (elbow & shoulder), supinate (forearm)

O: Short head: coracoid process /// long head: supraglenoid tubercle of scapula

I: Radial tuberosity and aponeurosis of biceps brachii

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Triceps brachii

A: Extension of elbow

O: Long: infraglenoid tubercle of scapula ///
Lateral: Posterior surface of proximal half of humerus /// Medial: Posterior surface of distal half of humerus

I: Olecranon process of ulna

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Coracobrachialis

A: Shoulder flexion

O: Coracoid process

I: Medial surface of mid-humeral shaft

Brachialis

A: Elbow flexion

O: distal half of anterior surface of humerus

I: Ulnar tuberosity and coroNoid process

Brachialradialis

A: Elbow flexion

O: Lateral supracondylar ridge

I: Styloid process of radius

Extensor Carpi Radialis Longus

A: Wrist extension and radial deviation

O: Lateral supracondylar ridge of humerus

I: Base of 2nd metacarpal

Extensor Carpi Radialis Brevis

A: Wrist extension

O: Common extensor tendon from lateral epicondyle

I: Base of 3rd metacarpal

Extensor Carpi Ulnaris

A: Extend & ulnar deviation

O: Common extensor tendon from lateral epicondyle

I: Base of 5th metacarpal

Extensor Digitorum

A: MCP extension

O: Common extensor tendon from lateral epicondyle

I: Bases of middle & distal phalanges of 2nd-5th fingers

Anconeus

A: Extend elbow O: lateral epicondyle of humerus I: Olecranon process & posterior, proximal surface of ulna

Extensor Indicis

A: Index MCP Extension O: Posterior surface of distal shaft of ulna and interosseous membrane I: Tendon of extensor digitorum at level of index finger

Flexor Carpi Radialis

A: Flex and radially deviate O: Common flexor tendon from medial epicondyle I: Bases of 2nd & 3rd metacarpals

Palmaris Longus

A: Wrist flexion O: Common flexor tendon from medial epicondyle I: Flexor retinaculum & palmar aponeurosis

Flexor Carpi Ulnaris

A: Flex and ulnar deviation O: Humeral head: Common flexor tendon from medial epicondyle /// Ulnar head: posterior surface of proximal 2/3 of ulna I: Pisiform, hamulus, & base of 5rd metacarpal

Flexor digitorum superficialis

A: PIP flexion O: Common flexor tendon from medial epicondyle, ulnar collateral ligament, coronoid process of ulna, interosseous membrane, and proximal shaft of radius I: Sides of middle phalanges of 2nd-5th fingers

Flexor digitorum profundus

A: DIP flexion O: Anterior & medial surfaces of proximal 3/4 of ulna I: Bases of distal phalanges, palmar surface of 2nd-5th fingers

Pronator Teres

A: Pronate (forearm) O: Common flexor tendon from medial epicondyle of humerus & coronoid process of ulna I: Middle of lateral surface of radius

Pronator Quadratus

A: Pronate (forearm) O: Medial, anterior surface of distal ulna I: Lateral, anterior surface of distal radius

Supinator

A: Supinate (forearm) O: Lateral epicondyle, radial collateral ligament, annular ligament and supinator crest of ulna I: Anterio, lateral surface of proximal 1/3 of radial shaft

Abductor Pollicis Longus

A: Thumb CMC Abduction O: Posterior surface of radius and ulna, & interosseous membrane I: Base of thumb

Extensor Pollicis Longus and Brevis

A: Thumb IP joint extension, CMC extension /// Thumb MCP joint extension, CMC extension O: Longus: posterior surface of ulna and interosseous membrane /// Brevis: posterior surface of radius and interosseous membrane I: Longus: base of distal phalanx of thumb /// Brevis: base of proximal phalanx of thumb

Flexor Pollicis Longus

A: Thumb flexion (IP, CMC, & MCP) O: Anterior surface of radius & interosseous membrane I: Base of distal phalanx of thumb

Abductor Pollicis Brevis

A: Thumb CMC abduction O: Flexor retinaculum, trapezium, and scaphoid tubercles I: Base of proximal phalanx of thumb

Flexor Pollicis Brevis

A: Thumb MCP joint flex O: Flexor retinaculum, trapezium, trapezoid, and capitate I: Base of proximal phalanx of thumb

Opponens Pollicis

A: Thumb CMC opposition O: flexor retinaculum and tubercle of trapezium I: Entire length of first metacarpal bone, radial surface

Adductor Pollicis

A: Thumb CMC adduction O: Capitate, 2nd-3rd metacarpals I: Base of proximal phalanx of thumb

ABductor Digiti Minimi

A: Little finger MCP abduction O: Pisiform and tendon of flexor carpi ulnaris I: Base of proximal phalanx of little finger, ulnar surface

Flexor Digiti Minimi Brevis

A: Little finger MCP flexion O: Hamulus & flexor retinaculum I: Base of proximal phalanx of little finger, palmar surface

Opponens Digiti Minimi

A: Little finger CMC joint opposition O: Hamulus & flexor retinaculum I: Shaft of 5th metacarpal, ulnar surface