Dorsal Scapular POINA

Question 1

Deltoid Purposeful Action

Answer 1

-Yoga with arms overhead (all)
-Reaching for seatbelt (anterior fibers)
-Putting on seatbelt (posterior)

Question 2

Deltoid Main Action

Answer 2

-Clavicular (anterior): flex and IR arm
-Acromial (middle): abduct arm
-Spinal (posterior): extend and ER arm

Question 3

Deltoid Proximal Attachment

Answer 3

Clavicle, acromion, spine of scap (where trap ends)

Question 4

Deltoid Distal Attachment

Answer 4

Deltoid tuberoisty

Question 5

Deltoid Innervation

Answer 5

Axillary nerve (C5 main, C6)

Question 6

Pectoralis Major Purposeful Action

Answer 6

Reaching across body into overhead cabinet, putting on seatbelt

Question 7

Pectoralis Major Main Action

Answer 7

Arm: adduction, IR, horizontal adduction
Scapula: Protraction
Acting alone
Clavicular head: flex arm
Sternocostal head: extend humerus from flexed

Question 8

Pectoralis Major Proximal Insertion

Answer 8

Clavicle, sternum, superior 6 costal cartilages, external oblique

Question 9

Pectoralis Major Distal Attachment

Answer 9

Lateral lip of intertubercular groove of humerus

Question 10

Pectoralis Major Innervation

Answer 10

Lateral and medial pectoral nerves
-Clavicular head: C5, C6 (main)
-Sternocostal head: (C7-8 main, T1)

Question 11

Pectoralis Minor Purposeful Action

Answer 11

Taking a deep breath, walking with crutches

Question 12

Pectoralis Minor Main Action

Answer 12

-Stabilize scapula (protraction)
-Assist to elevate thorax during forced inhalation (scap fixed)

Question 13

Pectoralis Minor Proximal Attachment

Answer 13

3-5th rib near costal cartilage

Question 14

Pectoralis Minor Distal Attachment

Answer 14

Coracoid process

Question 15

Pectoralis Minor Innervation

Answer 15

Median pectoral nerve (C8, T1), lateral pectoral nerve (variable)

Question 16

Infraspinatus Purposeful Action

Answer 16

Racket sports, table tennis

Question 17

Infraspinatus Main Action

Answer 17

External rotation of shoulder, stabilize head of humerus in glenoid cavity

Question 18

Infraspinatus Proximal Attachment

Answer 18

Infraspinous fossa

Question 19

Infraspinatus Distal Attachment

Answer 19

Greater tubercle

Question 20

Infraspinatus Innervation

Answer 20

Suprascapular nerve (C5 main, C6)

Question 21

Teres Major Purposeful Action

Answer 21

Toileting and perineal care

Question 22

Teres Major Main Action

Answer 22

Adduction, IR

Question 23

Teres Major Proximal Attachment

Answer 23

Posterior angle of inferior border of scapula

Question 24

Teres Major Distal Attachment

Answer 24

Medial lip of intertubercular sulcus of humerus

Question 25

Teres Major Innervation

Answer 25

Lower subscapular (C5 and 6 main)

Question 26

Supraspinatus Purposeful Action

Answer 26

Painting overhead or washing hair

Question 27

Supraspinatus Main Action

Answer 27

Abduction (with deltoid), stabilize head of humerus in glenoid cavity (with SITS muscles)

Question 28

Supraspinatus Proximal Attachment

Answer 28

Supraspinous fossa

Question 29

Supraspinatus Distal Attachment

Answer 29

Greater tubercle of humerus

Question 30

Supraspinatus Innervation

Answer 30

Suprascapular nerve (C4, 5 main, 6)

Question 31

Teres Minor Purposeful Action

Answer 31

Washing back of head and neck

Question 32

Teres Minor Main Action

Answer 32

ER, stabilize head of humerus in glenoid cavity

Question 33

Teres Minor Proximal Attachment

Answer 33

Lateral border of scapula

Question 34

Teres Minor Distal Attachment

Answer 34

Greater tubercle of humerus

Question 35

Teres Minor Innervation

Answer 35

Axillary nerve (C5 main, C6)

Question 36

Subscapularis Purposeful Action

Answer 36

Toileting, donning a bra, throwing a baseball

Question 37

Subscapularis Main Action

Answer 37

IR, stabilize head of humerus in glenoid cavity

Question 38

Subscapularis Proximal Attachment

Answer 38

Subscapular fossa (anterior)

Question 39

Subscapularis Distal Attachment

Answer 39

Lesser tuberosity of humerus

Question 40

Subscapularis Innervation

Answer 40

Upper and lower subscapular (C5, C6 main, C7)

Question 41

Serratus Anterior Purposeful Action

Answer 41

Pushing open a heavy door

Question 42

Serratus Anterior Main Action

Answer 42

PUH -Protraction -Upward rotation (with upper/lower trap) -Holds scapula against thoracic wall

Question 43

Serratus Anterior Proximal Attachment

Answer 43

Lateral part of upper 8-9 ribs

Question 44

Serratus Anterior Distal Attachment

Answer 44

Medial border of scapula

Question 45

Serratus Anterior Innervation

Answer 45

Long thoracic nerve (C5-7, 6 and 7 are main) SALT