Origins and Insertions

Question 1

Origin and insertion of pectoralis minor

Answer 1

Originates ribs 3-5

Inserts coracoid process

Question 2

Origin and insertion of serratus anterior

Answer 2

Origin: Lateral aspects of ribs 1-8

Insertion: Posteriorly to vertebral border of scapula

Question 3

Origin and insertion of the subclavius

Answer 3

Origin: Costal cartilage of rib one

Insertion: Inferior surface of the lateral third of the clavicle

Question 4

Origin and Insertion of sternocleidomastoid

Answer 4

Origin: Clavicle and Manubrium (sternum)

Insertion: Mastoid Process

Question 5

Origin and insertion of anterior scalene

Answer 5

Origin: Cervical Transverse Processes 3/4-6

Insertion: Rib one

Question 6

Origin of the trapezius

Answer 6

Ligamentum nucae,
occipital bone
spinous processes of C7-T12

Question 7

Insertion of trapezius

Answer 7

Laterally attaches to clavicle, acromion process of scapula , and spine of scapula

Question 8

Origin and insertion of levator scapulae

Answer 8

Originates at transverse processes of C1-C4 vertebrae

Inserts onto upper medial border of scapula

Question 9

Origin and insertion of rhomboid major and minor:

Answer 9

Spinous processes of vertebrae

Minor: C7-T1

Major: T2-T5

Both insert at medial border of scapula

Question 10

Origin and insertion of pectoralis major

Answer 10

Origin: Clavicle, Sternum, and cartilage of ribs 1-6

Insertion: Intertubercular groove of the humerus

Question 11

Origin and insertion of lattisimus dorsi

Answer 11

Origin: lumbodorsal fascia and thoracolumbar

Insertion: Intertubercular groove of the humerus

Question 12

Origin and insertion of the deltoid

Answer 12

Origin: Lateral third of the clavicle
Acromion Process
Lateral aspect of the spine of the scapula

Insertion: Deltoid Tuberosity

Question 13

Origin and insertion of the subscapularis

Answer 13

Origin: Subscapular fossa

Insertion: Lesser tubercle of the humerus

Question 14

Origin and insertion of the supraspinatus

Answer 14

Origin: Supraspinous fossa

Insertion: Greater tubercle of the humerus

Question 15

Origin and insertion of the infraspinatus

Answer 15

Origin: Infraspinous fossa

Insertion: Greater tubercle of the humerus

Question 16

Origin and insertion of the teres minor

Answer 16

Origin: Lateral border of the posterior surface of the scapula

Insertion: Superior part of greater tubercle

Question 17

Origin and insertion of the teres major

Answer 17

Origin: Posterior surface of scapula at inferior angle

Insertion: Intertubercular sulcus of the humerus

Question 18

Origin and insertion of the coracobrachialis

Answer 18

Origin: coracoid process of the scapula

Insertion: Medial surface of the humerus

Question 19

Origin and insertion of all the anterior forearm muscles is the….

Answer 19

Common flexor tendon off the medial epicondyle of the humerus

Question 20

Origin and insertion of pronator teres

Answer 20

Origin: Medial epicondyle of the humerus

Insertion: Coronoid process of the ulna

Question 21

Origin and insertion of the flexor carpi radialis

Answer 21

Origin: Medial epicondyle of the humerus

Insertion: Base of 2nd and 3rd metacarpals

Question 22

Origin and insertion of palmaris longus

Answer 22

Origin: Medial epicondyle

Insertion: Palmar aponeurosis

Question 23

Origin and insertion of flexor carpi ulnaris

Answer 23

Origin: Medial epicondyle of the humerus and SOME olecranon process

Insertion: Pisiform bone and base of 5th metacarpal

Question 24

Origin and insertion of flexor digitorum superficialis

Answer 24

Origin: Medial epicondyle of the humerus, coronoid process of the ulna, upper half of the radius

Insertion: Middle phalanges of fingers 2-5

Question 25

Origin and insertion of the flexor pollicis longus

Answer 25

Origin: Anterior surface of the radius and interosseous membrane Insertion: Distal phalanx of the thumb

Question 26

Origin and insertion of the flexor digitorum profundus

Answer 26

Origin: Ulna and interosseous membrane Insertion: Distal phalanges of the fingers

Question 27

Origin and insertion of pronator quadratus

Answer 27

Origin: Distal portion of the anterior surface of the ulna Insertion: Distal portion of the anterior surface of the radius

Question 28

4 of the 7 superficial muscles of the posterior forearm originate where?

Answer 28

Common extensor tendon from the lateral epicondyle of the humerus

Question 29

The other muscles of the posterior forearm originate where?

Answer 29

Slightly above the others on the lateral supracondylar ridge

Question 30

Origin and insertion of extensor carpi radialis longus

Answer 30

Origin: Lateral supracondyle ridge of the humerus Insertion: Base of 2nd metacarpal

Question 31

Origin and insertion of extensor carpi radialis brevis

Answer 31

Origin: Lateral epicondyle of the humerus Insertion: Base of the 3rd metacarpal

Question 32

Origin and insertion of the extensor digitorum

Answer 32

Origin: Lateral epicondyle of the humerus Insertion: Extensor Expansion hood of middle and distal phalanges

Question 33

Origin and insertion of extensor digiti minimi

Answer 33

Origin: Lateral epicondyle Insertion: Extensor expansion hood at base of proximal phalanx

Question 34

Origin and Insertion of the extensor carpi ulnaris

Answer 34

Origin: Lateral epicondyle Insertion: Base of 5th metacarpal

Question 35

Origin and insertion of the supinator

Answer 35

Origin: Lateral epicondyle and the ulna Insertion: Upper 3rd of the radius

Question 36

Origin and insertion of abductor pollicis longus

Answer 36

Origin: Radius and ulna Insertion: base of first metacarpal

Question 37

Origin and insertion of extensor pollicis longus

Answer 37

Origin: The ulna Insertion: Distal phalynx of thumb

Question 38

Origin and insertion of extensor pollicis brevis

Answer 38

Origin: Dorsal Radius Insertion: Proximal phalanx of thumb

Question 39

Origin and innervation of extensor indicis

Answer 39

Origin: Ulna and interosseous membrane Insertion: Extensor expansion hood of index finger

Question 40

Origin and insertion of abductor pollicis brevis

Answer 40

Origin: Scaphoid, Trapezium, Flexor Retinaculum Insertion: Base of proximal phalanx of thumb

Question 41

Origin and insertion of the flexor pollicis brevis

Answer 41

Origin: Trapezium and flexor retinaculum Insertion: Base of proximal phalanx

Question 42

Origin and insertion of opponens pollicis

Answer 42

Origin: Trapezium and flexor retinaculum Insertion: Lateral border of 1st metacarpal

Question 43

Origin and insertion of adductor pollicis

Answer 43

Origin: Capitate, base of metacarpals 2 and 3, 3rd metacarpal Insertion: Proximal phalanx of the thumb

Question 44

Origin of abductor digiti minimi

Answer 44

Origin: Pisiform bone Insertion: proximal phalanx of 5th digit

Question 45

Origin of Flexor digiti minimi brevis

Answer 45

Origin: Hamate, Flexor Retinaculum Insertion: Base of proximal phalanx of 5th digit

Question 46

Origin and insertion of opponens digiti minimi

Answer 46

Origin: Hamate Insertion: Medial border of 5th metacarpal

Question 47

Origin and insertion of the lumbricles

Answer 47

Origin: Tendon of flexor digitorum profundus Insertion: Expansion hood of dorsum of digits

Question 48

Origin and insertion of palmar interossei

Answer 48

Origin: Metacarpals Insertion:Proximal phalanx of digit of origin

Question 49

Origin and insertion of dorsal interossei

Answer 49

Origin: 1st and 2nd metacarpal 2nd and 3rd 3rd and 4th 4th and 5th Insertion: Proximal phalanx and extensor expansion hood