Origin and Insertion Flashcards
Upper trapezius
Origin: external occipital protuberance, medial 1/3 superior nuchal line, ligamentum nuchae, spinous process C7
Insertion: Lateral 1/3 of clavicle
Middle trapezius
Origin: spinous process T1-T5
Insertion: medial margin of acromion, spine of scapula, crest of its superior lip
Lower trapezius
Origin: spinous process T6-T12
Insertion: spine of scapula tubercle
Latissimus dorsi
Origin: Spinous process T6-T12 and spinous process of lumbar and sacra vertebrae by thoracolumbar fascia, ribs 9-12, iliac crest
Insertion:Floor of intertubercular groove
Levator scapulae
Origin: posterior tubercles of transverse process of C1-C4
Insertion: medial border of scapula superior to root of spine
Rhomboid major
Origin: spinous process of T2-T5
Insertion: medial border of scapula from level of spine to inferior angle
Rhomboid minor
Origin: ligamentum nuchae and spinous process of C7 and T1
Insertion: root of scapular spine
Pec major
Origin: anterior surface of the medial half of the clavicle and anterior surface of sternum, superior 6 costal cartilages, aponeurosis of external oblique
Insertion:lateral lip of intertubercular groove of humerus
Pec minor
Origin: ribs 3-5
Insertion: medial border and superior surface of coracoid process
Subclavius
Origin: junction of 1st rib and costal cartilage
Insertion: inferior surface of middle third of clavicle
Serratus anterior
Origin: lateral parts of ribs 1-8
Insertion: anterior surface of medial border of scapula
Deltoid
Origin: lateral 1/3 of clavicle (a), acromion (m), scapular spine (p)
Insertion: deltoid tuberosity of humerus
Supraspinatus
Origin: supraspinous fossa of scapula
Insertion: superior facet of greater tubercle of humerus
Infraspinatus
Origin: infraspinous fossa of scapula
Insertion: middle facet of greater tubercle of humerus
Teres minor
Origin: middle part of lateral border of scapula
Insertion: inferior facet of greater tubercle of humerus
Teres major
Origin: posterior surface of inferior angle of scapula
Insertion: medial lip of intertubercular groove of humerus
Subscapularis
Origin: subscapular fossa
Insertion: lesser tubercle of humerus
Biceps brachii
Origin: tip of coracoid process (short) and supraglenoid tubercle of scapula, capsule of GH joint and labrum (long)
Insertion: tuberosity of radius and fascia via bicipital aponeurosis
Brachialis
Origin:distal half of anterior surface of humerus
Insertion: Ulnar tuberosity and coronoid process
Coracobrachialis
Origin: tip of coracoid process
Insertion: middle third of medial surface of humerus
Triceps brachii
Origin: infraglenoid tubercle of scapula (long), posterior surface of humerus superior to radial groove (lateral), posterior surface of humerus inferior to radial groove inferior to radial groove (medial)
Insertion: proximal end of olecranon of ulna, capsule of elbow joint and antebrachial fascia
Anconeus
Origin: lateral epicondyle of humerus and capsule of elbow joint
Insertion: lateral surface of olecranon and superior part of posterior surface of ulna
Pronator teres
Origin: shaft proximal to medial epicondyle and common flexor tendon (humeral head) and coronoid process (ulnar head)
Insertion: Lateral surface of middle shaft or radius
Flexor carpi radialis
Origin: medial epicondyle by common flexor tendon
Insertion: bases of second and third metacarpal
Palmaris longus
Origin: medial epicondyle
Insertion: flexor retinaculum and palmar aponeurosis
Flexor carpi ulnaris
Origin: medial epicondyle (humeral), olecranon and posterior border or ulna (ulnar head)
Insertion: pisiform, hook of hamate and 5th metacarpal
Flexor digitorum superficialis
Origin: medial epicondyle, ulnar collateral ligament, medial side of coronoid process (humeral-ulnar head), oblique line on anterior surface of radial shaft (radial head)
Insertion: shaft of middle phalanges of medial four fingers
Flexor digitorum profundus
Origin: upper 3/4 of anterior and medial surfaces of ulna, cornoid process
Insertion: bases of distal phalanges of digits 2-5
Flexor pollicis longus
Origin: anterior surface of middle shaft radius, interosseous membrane
Insertion: base of distal phalanx of thumb
Pronator quadratus
Origin: distal 1/4 of anterior surface of ulna
Insertion: distal 1/4 of anterior surface of radius
Opponens polllicis
Origin: tubercle of trapezium and flexor retinaculum
Insertion: lateral side of 1st metacarpal
Abductor pollicis brevis
Origin: tubercle of scaphoid and trapezium, flexor retinaculum
Insertion: lateral side of proximal phalanx of thumb
Flexor pollicis brevis
Origin: tubercle of trapezium and flexor retinaculum (superficial), trapezoid and capitate (deep)
Insertion: lateral side of base of proximal phalanx of thumb
Adductor pollicis
Origin: capitate, bases of 2nd and 3rd metacarpals (oblique) and anterior surface of shaft of 3rd metacarpal (transverse)
Insertion: medial side of base of proximal phalanx of thumb
Abductor digiti minimi
Origin: pisiform, tendon of flexor carpi ulnaris, pisohamate ligament
Insertion: medial side of base of proximal phalanx of 5th digit, dorsal expansion of extensor digiti minimi
Flexor digiti minimi brevis
Origin: hook of hamate and flexor retinaculum
Insertion: medial side of proximal phalanx of 5th digit
Opponens digiti minimi
Origin: hook of hamate and flexor retinaculum
Insertion: medial border of 5th metacarpal
Brachioradialis
Origin: Proximal 2/3 of lateral supracondylar ridge of humerus
Insertion: lateral surface of distal end of radius proximal to styloid process
Extesnor carpi radialis longus
Origin: lateral supracondylar ridge of humerus, common extensor tendon
Insertion: dorsal aspect of base of 2nd metacarpal on radial side
Extensor carpi radialis brevis
Origin: lateral epicondyle of humerus via common extensor tendon, radial collateral ligament
Insertion: dorsal aspect of base of 3rd metacarpal on radial side
Extensor digitorum
Origin: lateral epicondyle
Insertion: divides into 4 tendons that insert into the extensor expansion of digits 2-5, intermediate slips to middle phalanges and lateral slips to distal phalanges
Extensor digiti minimi
Origin: lateral epicondyle
Insertion: extension expansion of 5th digit on radial side
Extensor carpi ulnaris
Origin: lateral epicondyle, posterior border of ulna by aponeurosis shared by FCU and FDP
Insertion: tubercle on dorsal aspect of base of 5th metacarpal
Supinator
Origin: lateral epicondyle, radial collateral and annular ligaments, supinator crest
Insertion: lateral surface of proximal 1/3 of radius, tuberosity and oblique line of radius
Extensor indicis
Origin: posterior surface of distal 1/3 of ulna
Insertion: extensor expansion of 2nd digit
Abductor pollicis longus
Origin: posterior surface of shaft of ulna, middle 1/3 of posterior shaft of radius and interosseous membrane
Insertion: radial side of base of 1st metacarpal and trapezium
Extensor pollicis longus
Origin: posterolateral surface of middle shaft of ulna
Insertion: dorsal aspect of base of distal phalanx of the thumb
Extensor pollicis brevis
Origin: posterior surface of distal 1/3 of radius
Insertion: dorsal aspect of base of proximal phalanx of thumb
