Back Muscles

Question 1

Trapezius Origin

Answer 1

Superior nuchal line
Ligamen nuchae
C7-T12 Spinous Processes

Question 2

Trapezius Insertion

Answer 2

Spine of scapula
Acromion
Lateral 1/3 of clavicle

Question 3

Trapezius Innervation

Answer 3

Accessory Nerve
C3
C4

Question 4

Trapezius Action

Answer 4

At scapula
Adduct
Elevates
Depresses
Rotates

Question 5

Levator Scapulae Origin

Answer 5

Transverse process of C1-C4

Question 6

Levator Scapulae Insertion

Answer 6

Medial border of scapula

Question 7

Levator Scapulae Innervation

Answer 7

Dorsal scapular nerve
C3
C4

Question 8

Levator Scapulae Action

Answer 8

Elevates scapula

Question 9

Rhomboid Minor Origin

Answer 9

Spines of C7-T1

Question 10

Rhomboid Minor Insertion

Answer 10

Root of spine scapula

Question 11

Rhomboid Minor Nerve

Answer 11

Dorsal scapular nerve

C5

Question 12

Rhomboid Minor Action

Answer 12

Adducts scapula

Question 13

Rhomboid Major Origin

Answer 13

Spines of T2-T5

Question 14

Rhomboid Major Insertion

Answer 14

Medial border of scapula

Question 15

Rhomboid Major Nerve

Answer 15

Dorsal scapular nerve

C5

Question 16

Rhomboid Major Action

Answer 16

Adducts scapula

Question 17

Latissimus Dorsi Origin

Answer 17

Spines of T5-T12
Thoracolumbar fascia
Iliac crest
Ribs 9-12

Question 18

Latissimus Dorsi Insertion

Answer 18

Floor of bicipital groove of humerus

Question 19

Latissimus Dorsi Innervation

Answer 19

Thoracodorsal nerve

Question 20

Latissimus Dorsi Action

Answer 20

Adducts, extends and rotates arm medially

Question 21

Serratus Anterior Origin

Answer 21

Outer surface of ribs 1-8

Question 22

Serratus Anterior Insertion

Answer 22

Medial border of scapula

Question 23

Serratus Anterior Innervation

Answer 23

Long thoracic nerve

Question 24

Serratus Anterior Action

Answer 24

Abducts and protracts scapula

Question 25

ILS Origin

Answer 25

Posterior, lateral surface of sacrum and iliac crest and supraspinous ligament Ribs Transverse and spinous processes

Question 26

Iliocostalis Insertion

Answer 26

Ribs and cervical transverse processes

Question 27

Longissimus Insertion

Answer 27

Ribs Transverse processes of cervical/thoracic vertebrae Mastoid process

Question 28

Spinalis Insertion

Answer 28

Spinous processes of vertebrae

Question 29

ILS Innervation

Answer 29

Posterior rami of spinal nerves

Question 30

ILS Action

Answer 30

Extension of head, cervical and thoracic region bilaterally Unilateral lateral flexion Aids in twisting

Question 31

Semispinalis Origin

Answer 31

Transverse processes of C4-T12

Question 32

Semispinalis Insertion

Answer 32

Spinous process 4-6 segments above origin

Question 33

Multifidus Origin

Answer 33

Sacrum and ilium inferiorly | Transverse processes cranially

Question 34

Multifidus Insertion

Answer 34

Spinous processes 2-4 segments superior to origin

Question 35

Rotatores Origin

Answer 35

Transverse processes

Question 36

Rotatores Insertion

Answer 36

Spinous process 1-2 segments superior to origin

Question 37

Semispinalus, Multifidus and Rotatores Innervation

Answer 37

Posterior rami of spinal nerves

Question 38

Semispinalus, Multifidus and Rotatores Action

Answer 38

Extension Lateral flexion Rotation Postural