Shoulder

Question 1

upper trapezius origin

Answer 1

external occipital protuberance, medial half of the superior nuchal line, ligamentum nuchae, spinous process of 7th cervical vertebrae

Question 2

upper trapezius insertion

Answer 2

lateral 1/3 of the clavicle

Question 3

upper trapezius nerve supply

Answer 3

spinal portion of the accessory nerve (CN XI), ventral rami of C3, C4 Nerve root: C1-5

Question 4

upper trapezius function

Answer 4

scapular elevation; upward rotation of the scapula (in conjunction with the inferior fibers)

Question 5

levator scapulae origin

Answer 5

transverse processes of the upper 4 cervical vertebrae

Question 6

levator scapulae insertion

Answer 6

vertebral border of the scapula, between the superior angle and the root of the scapular spine

Question 7

levator scapulae nerve supply

Answer 7

dorsal scapular nerve C3, C4 Nerve root: C3, C4, C5

Question 8

levator scapulae function

Answer 8

scapular elevation, adduction, downward rotation

Question 9

middle trapezius origin

Answer 9

spinous processes for T1-T5 and intervening supraspinal ligament

Question 10

middle trapezius insertion

Answer 10

medial border of the acromion process and the spine of the scapula

Question 11

middle trapezius nerve supply

Answer 11

spinal portion of the accessory nerve (CN XI); ventral rami of C3, C4 Nerve root: C1-C5

Question 12

middle trapezius function

Answer 12

scapular adduction

Question 13

lower trapezius origin

Answer 13

spinous process of T6-T12 and intervening supraspinous ligament

Question 14

lower trapezius insertion

Answer 14

tubercle on the medial end of the scapular spine

Question 15

lower trapezius nerve supply

Answer 15

spinal portion of the accessory nerve (CN XI); ventral rami of C3, C4. Nerve root: C1-C5

Question 16

lower trapezius function

Answer 16

scapular depression, upward rotation of the scapula (in conjunction with the superior fibers)

Question 17

rhomboid major origin

Answer 17

spinous process of T2-T5 and intervening supraspinous ligament

Question 18

rhomboid major insertion

Answer 18

vertebral border of the scapula between the spine and inferior angle

Question 19

rhomboid major nerve supply

Answer 19

dorsal scapular n. C5

Question 20

rhomboid major function

Answer 20

adduction, downward rotation, and elevation of the scapula

Question 21

rhomboid minor origin

Answer 21

spinous process of C7 and T1 and the inferior aspect of the ligamentum nuchae

Question 22

rhomboid minor insertion

Answer 22

base of the spine of the scapula

Question 23

rhomboid minor nerve supply

Answer 23

dorsal scapular n. C5

Question 24

rhomboid minor function

Answer 24

adduction and elevation of the scapula

Question 25

serratus anterior origin

Answer 25

anterosuperior aspect of the upper 8 or 9 ribs

Question 26

serratus anterior insertion

Answer 26

anterior surface of the vertebral border of the scapula

Question 27

serratus anterior nerve supply

Answer 27

long thoracic n. C5-C7

Question 28

serratus anterior function

Answer 28

scapula ABduction, upward rotation of the scapula (inferior fibers)

Question 29

latissimus dorsi origin

Answer 29

spinous process of sacral, lumbar, and lower 6 thoracic vertebrae and the supraspinal ligament via the thoracolumbar fascia, iliac crest, and lower 3-4 ribs

Question 30

latissimus dorsi insertion

Answer 30

floor of the intertubercular groove of the humerus

Question 31

latissimus dorsi nerve supply

Answer 31

thoracodorsal n. C6-C8

Question 32

latissimus dorsi function

Answer 32

extension, adduction, and medial rotation of the shoulder

Question 33

teres major origin

Answer 33

posterior surface of the inferior angle of the scapula

Question 34

teres major insertion

Answer 34

medial lip of the intertubercular groove of the humerus

Question 35

teres major nerve supply

Answer 35

lower subscapular n. C5, C6

Question 36

teres major function

Answer 36

adduction, extension, and medial rotation of the shoulder

Question 37

posterior deltoid origin

Answer 37

inferior aspect of the spine of the scapula

Question 38

posterior deltoid insertion

Answer 38

deltoid tuberosity of the humerus

Question 39

posterior deltoid nerve supply

Answer 39

axillary n. C5, C6

Question 40

posterior deltoid function

Answer 40

extension of the shoulder

Question 41

middle deltoid origin

Answer 41

acromion process of the scapula

Question 42

middle deltoid insertion

Answer 42

deltoid tuberosity of the humerus

Question 43

middle deltoid nerve supply

Answer 43

axillary n. C5, C6

Question 44

middle deltoid function

Answer 44

abduction of the shoulder

Question 45

supraspinatus origin

Answer 45

supraspinatus fossa of the scapula

Question 46

supraspinatus insertion

Answer 46

greater tubercle of the humerus

Question 47

supraspinatus nerve supply

Answer 47

suprascapular n. C5-8, T1

Question 48

supraspinatus function

Answer 48

ABduction and lateral rotation of the shoulder

Question 49

pectoralis major origin

Answer 49

clacicular portion: anterior surface of the medial half of the clavical. sternocostal portion: anterior surface of the sternum, cartilage of ribs 1-7, aponeurosis of the external abdominal oblique.

Question 50

pectoralis major insertion

Answer 50

lateral lip of the intertubercular groove of the humerus

Question 51

pectoralis major nerve supply

Answer 51

medial and lateral pectoral n. C5-8, T1

Question 52

pectoralis major function

Answer 52

ADDuction and medial rotation of the shoulder. Clavicular portion: flexion and horizontal ADDuction of the shoulder. Sternocostal portion: extension of the shoulder from a flexed position.

Question 53

subscapularis origin

Answer 53

subscapular fossa of the scapula

Question 54

subscapularis insertion

Answer 54

lesser tubercle of the humerus

Question 55

subscapularis nerve supply

Answer 55

upper and lower subscapular n. C5, C6

Question 56

subscapularis function

Answer 56

medial rotation of the shoulder

Question 57

infraspinatus origin

Answer 57

intraspinatus fossa of the scapula

Question 58

infraspinatus insertion

Answer 58

greater tubercle of the humerus

Question 59

infraspinatus nerve supply

Answer 59

suprascapular n. C5, C6

Question 60

infraspinatus function

Answer 60

lateral rotation of the shoulder

Question 61

teres minor origin

Answer 61

superior 2/3 of the posterior surface of the axillary border of the scapula

Question 62

teres minor insertion

Answer 62

greater tubercle of the humerus

Question 63

teres minor nerve supply

Answer 63

axillary n. C5

Question 64

teres minor function

Answer 64

lateral rotation of the shoulder