Back muscle origin, insertion, movement

Question 1

trapezius origin

Answer 1

spinous process C7-T12; nuchal ligament, occipital protuberance of skull

Question 2

trapezius insertion

Answer 2

scapula, acromion, lateral third of clavicle

Question 3

trapezius movement

Answer 3

scapula elevation and depression, scapula retraction/adduction, extension of neck

Question 4

latissimus dorsi origin

Answer 4

inferior angle of scapula, spinous process T7-T12, inferior third of fourth ribs, iliac crest

Question 5

latissimus dorsi insertion

Answer 5

intertubercle groove of humerus

Question 6

latissimus dorsi movement

Answer 6

arm extension, arm adduction, medial rotation of arm

Question 7

iliocostalis origin

Answer 7

iliac crest and sacrum

Question 8

iliocostalis insertion

Answer 8

angle of the ribs

Question 9

iliocostalis movement

Answer 9

extend and laterally bend the neck and trunk

Question 10

longissimus origin

Answer 10

transverse process at inferior vertebral levels

Question 11

longissimus insertion

Answer 11

transverse process at superior levels and the mastoid process

Question 12

longissimus movement

Answer 12

extend and laterally bend head, neck, and trunk

Question 13

spinalis origin

Answer 13

spinous process at inferior vertebral levels

Question 14

spinalis insertion

Answer 14

spinous process at superior vertebral levels and the base of the skull

Question 15

spinalis movement

Answer 15

extend and laterally bend the neck and trunk

Question 16

semispinalis capitus origin

Answer 16

transverse process C7-T12 vertebrae

Question 17

semispinalis capitus insertion

Answer 17

back of skull between nuchal lines

Question 18

semispinalis cervicis and thoracic insertion

Answer 18

spines 4-6 vertebrae above the origin (C-T12 vertebrae)

Question 19

semispinalis movement

Answer 19

extend and laterally bend trunk, laterally bend trunk to the opposite side

Question 20

splenius capitus origin

Answer 20

ligamentum nuchae and spines C7-T6 vertebrae

Question 21

splenius capitus insertion

Answer 21

mastoid process and lateral end of superior nuchal line

Question 22

splenius capitus movement

Answer 22

extend and laterally bend the head and neck, rotate head to the same side

Question 23

splenius cervicis origin

Answer 23

ligamentum nuchae and spines C7-T6 vertebrae

Question 24

splenius cervicis insertion

Answer 24

posterior tubercles of transverse processes of C1-C3 vertebrae

Question 25

splenius cervicis movement

Answer 25

extend and laterally bend head and neck, rotate head to the same side

Question 26

levator scapulae origin

Answer 26

transverse process of C1-C4 spine

Question 27

levator scapulae insertion

Answer 27

superior angle of the medial border of scapula

Question 28

levator scapulae movement

Answer 28

elevate the scapula and tilt the scapula to lower the glenoid cavity

Question 29

rhomboid minor origin

Answer 29

spinous processes of C7-T1 vertebrae, nuchal ligament

Question 30

rhomboid minor insertion

Answer 30

superior angle of the medial border of scapula

Question 31

rhomboid minor movement

Answer 31

scapula retraction, rotate scapula to depress the glenoid cavity

Question 32

rhomboid major origin

Answer 32

T2-T5 spinous process

Question 33

rhomboid major insertion

Answer 33

inferior medial border of the scapula (below root of spinous scapula)

Question 34

rhomboid major movement

Answer 34

scapula retraction, rotation of scapula to depress the glenoid cavity