Back/Chest

Question 0

Action of middle trap

Answer 0

Adduction of scapula

Question 1

Action of Upper Trap

Answer 1

Elevation and upward rotation of scapula
Insertion fixed: bilateral action is cervical extension and capital extension
Insertion fixed: unilateral action is extension and lateral flexion of head and neck to the same side
Rotation of head to the opposite side

Question 2

Action of lower trap

Answer 2

Depression, adduction, and upward rotation of scapula

Question 3

Innervation of trap

Answer 3

Spinal Accessory Nerve (CN XI) and C3,C4

Question 4

Action of rhomboid Major and minor

Answer 4

scapular adduction, downward rotation, and elevation

Question 5

Innervation of rhomboid major and minor

Answer 5

Dorsal scapular nerve (C5)

Question 6

Action of levator scapulae

Answer 6

scapular elevation, adduction, downward rotation
cervical rotation to same side and cervical bending to same side
Assist in cervical extension

Question 7

Innervation of levator scapulae

Answer 7

Dorsal Scapular nerve (C3-C5)

Question 8

Action of serratus anterior

Answer 8

scapular abduction and upward rotation

keeps medial border of scapula drawn to thoracic wall

Question 9

Innervation of serratus anterior

Answer 9

Long Thoracic C5-C7

Question 10

Action of Pec Minor

Answer 10

Scapular protraction/abduction

Elevation of ribs in forced inspiration with scapula fixed

Question 11

Innervation of pec minor

Answer 11

Medial and lateral pectoral nerve (C5-T1)

Question 12

Action of latissimus dorsi

Answer 12

Shoulder extension, adduction, and internal rotation

Hyperextension of spine and anterior tilt of pelvis (acting bilaterally with humeral attachment fixed)

Question 13

Innervation of latissimus dorsi

Answer 13

Thoracodorsal nerve (C6-C8)

Question 14

Action of Pec major muscle (whole)

Answer 14

shoulder adduction, IR

Elevation of thorax in forced inspiration

Question 15

Action of pec major muscle (upper)

Answer 15

shoulder IR, flexion, and horizontal adduction

Question 16

Action of pec major (lower)

Answer 16

Obliquely adduct shoulder

Shoulder extension

Question 17

Innervation of upper and lower fibers of pec major

Answer 17

Upper: lateral pec (C5-C7)
Lower: medial and lateral (C6-T1)

Question 18

Action of subscapularis

Answer 18

Shoulder IR

Stabilization of GH joint

Question 19

Innervation of subscapularis

Answer 19

Upper and lower subscapular nerve (C5,C6)

Question 20

Action of subclavius

Answer 20

Assist in shoulder depression

Depresses and moves clavicle forward

Question 21

Innervation of subclavius

Answer 21

nerve to subclavius (C5,C6)

Question 22

Action of anterior deltoid

Answer 22

Shoulder flexion, IR, abduction, and horizontal adduction

Question 23

Action of middle deltoid

Answer 23

shoulder abduction

Question 24

Action of posterior deltoid

Answer 24

Shoulder extension, shoulder ER, abduction, horizontal abduction

Question 25

Innervation of deltoid

Answer 25

Axillary nerve C5,C6

Question 26

Action of supraspinatus

Answer 26

Shoulder abduction and stabilization of GH joint

Question 27

Innervation of supraspinatus

Answer 27

Suprascapular nerve (C5,C6)

Question 28

Action of infraspinatus

Answer 28

Shoulder external rotation

Stabilization of GH joint

Question 29

Innervation of infraspinatus

Answer 29

Suprascapular nerve (C5,C6)

Question 30

Action of teres minor

Answer 30

Shoulder external rotation

Stabilization of GH joint

Question 31

Innervation of Teres Minor

Answer 31

Axillary nerve (C5,C6)

Question 32

Action of teres major

Answer 32

Shoulder extension,adduction,IR

Question 33

Innervation of teres major

Answer 33

Lower supscapular nerve (C5,C6)