Dorsal Scapular Region POINAS

Question 1

Deltoid (Purposeful Activities)

Answer 1

Doing yoga poses with arms overhead (all fibers), reaching for (anterior fibers) and putting on (posterior fibers) a seat belt

Question 2

Deltoid Clavicular [anterior] (Main Actions)

Answer 2

Flexes and medially rotates arm

Question 3

Deltoid Acromial [middle] (Main Actions)

Answer 3

Abducts arm

Question 4

Deltoid Spinal [posterior] (Main Actions)

Answer 4

extends and laterally rotates arm

Question 5

Deltoid (Proximal Attachments)

Answer 5

Lateral 1/3 clavicle, acromion, and spine of scapula (begins where the trap ends)

Question 6

Deltoid (Distal Attachments)

Answer 6

(somewhere on humerous) ill update later

Question 7

Deltoid (Nerve Innervation)

Answer 7

Axillary nerve (C5, C6)

Question 8

Pectoralis Major (Purposeful Activity)

Answer 8

Reaching across the body into an overhead cabinet, putting on a seatbelt

Question 9

Pectoralis Major (Main Actions)

Answer 9

Addults and medially rotates humerus; draws scapula anteriorly and inferiorly: HADD/ horizontal adduction

Acting alone, calvicular head flexes humerus and sternocostal head extends it from the flexed position

Question 10

Pectoralis Major (Proximal Attachments)

Answer 10

• Clavicular head: medial half of clavicle
• Sternocostal head: anterior surface of sternum, superior six costal cartilages, and external oblique muscle

Question 11

Pectoralis Major (Distal Attachments)

Answer 11

Lateral hip of intertubercular sulcus of humerus

Question 12

Pectoralis Major (Nerve Innervation)

Answer 12

Lateral and medial pactoral nerves; clavicular head (C5, C6) and sternocostal head (C7, C8, T1)

Question 13

Pectoralis Mnior (Purposeful Activities)

Answer 13

Taking a deep breath, walking with crutches

Question 14

Pectoralis Minor (Main Actions)

Answer 14

Stabilizes scapula by drawing it inferiorly and anteriorly against thoracic wall

With the scapula fixed: assists to elevate the thorax during forced inhalation

Question 15

Pectoralis Minor (Proximal Attachments)

Answer 15

Third, fourth, and fifth ribs near their costal cartilage

Question 16

Pectoralis Minor (Distal Attachments)

Answer 16

Coracoid process

Question 17

Pectoralis Minor (Nerve Innervation)

Answer 17

Medial pectoral nerve (C8, T1); lateral pectoral nerve (variable innervation)

Question 18

Infraspinatus (Purposeful Activities)

Answer 18

Playing racket sports or table tennis

Question 19

Infraspinatus (Main Actions)

Answer 19

• Externally rotate the shoulder (GHJ)
• MAIN EXTERNAL ROTATOR
• Stabilize the head of the humerus in glenoid cavity along with the other SITS muscles

Question 20

Infraspinatus (Proximal Attachments)

Answer 20

I missed this in lecture my bad

Question 21

Infraspinatus (Distal Attachments)

Answer 21

Middle facet of greater tubercle of humerus

Question 22

Infraspinatus (Nerve Innervation)

Answer 22

Suprascapular nerve (C5, C6)

Question 23

Teres Major (Purposeful Activities)

Answer 23

Toileting and perineal care

Question 24

Teres Major (Main Actions)

Answer 24

• Adduct the shoulder (GHJ)
• Internally rotate the shoulder (GHJ)

Question 25

Teres Major (Proximal Attachments)

Answer 25

Posterior surface of inferior angle of the scapula

Question 26

Teres Major (Distal Attachments)

Answer 26

Medial lip of intertubercular sulcus of the humerus

Question 27

Teres Major (Nerve Innervation)

Answer 27

Lower subscapular nerve (C5, C6)

Question 28

Supraspinatus (Purposeful Activities)

Answer 28

Painting overhead or washing your hair

Question 29

Supraspinatus (Main Actions)

Answer 29

- Initiates and assists deltoid in abduction of arm - Stabilize the head of humerus in glenoid cavity, along with other SITS muscles

Question 30

Supraspinatus (Proximal Attachments)

Answer 30

Supraspinous fossa of the scapula

Question 31

Supraspinatus (Distal Attachments)

Answer 31

Greater tubercle of humerus

Question 32

Supraspinatus (Nerve Innervation)

Answer 32

Suprascapular nerve (C4, C5, C6)

Question 33

Teres Minor (Purposeful Activities)

Answer 33

Washing the back of head and neck

Question 34

Teres Minor (Main Actions)

Answer 34

- Externally rotate the shoulder (GHJ) - Stabilize the head of humerus in glenoid cavity

Question 35

Teres Minor (Proximal Attachments)

Answer 35

Lateral border of the scapula

Question 36

Teres Minor (Distal Attachments)

Answer 36

Greater tubercle of humerus

Question 37

Teres Minor (Nerve Innervation)

Answer 37

Axillary nerve (C5, C6)

Question 38

Subscapularis (Purposeful Activities)

Answer 38

Toileting, donning a bra, or throwing a baseball

Question 39

Subscapularis (Main Actions)

Answer 39

- Internally rotate the shoulder (GHJ) - Stabilize the head of humerus in glenoid cavity

Question 40

Subscapularis (Proximal Attachments)

Answer 40

Subscapular fossa

Question 41

Subscapularis (Distal Attachments)

Answer 41

Lesser tuberosity of humerus

Question 42

Subscapularis (Nerve Innervation)

Answer 42

Upper and lower subscapular (C5,C6,C7)

Question 43

Serratus Anterior (Purposeful Activities)

Answer 43

Pushing open a heavy door

Question 44

Serratus Anterior (Main Actions)

Answer 44

- Protracts the scapula (ST joint) ex: serratus punches - Upwardly rotates the scapula (ST joint) - Holds scapula against thoracic wall

Question 45

Serratus Anterior (Proximal Attachments)

Answer 45

Lateral parts of upper 8 or 9 ribs

Question 46

Serratus Anterior (Distal Attachments)

Answer 46

Anterior surface of medial border of scapula

Question 47

Serratus Anterior (Nerve Innervation)

Answer 47

Long thoracic nerve (C5, C6, C7) SALT (Serratus Anterior, Long Thoracic)