Shoulder Girdle

Question 1

What is the first bone to be formed?

Answer 1

clavicle

Question 2

What are the joints of the shoulder girdle?

Answer 2

Sternoclavicular, acromioclavicular, scapulothoracic, glenohumeral

Question 3

what are the ligaments of the sternoclavicular joint?

Answer 3

anterior and posterior sternoclavicular, costoclavicular, interclavicular

Question 4

what are the motions of the sternoclavicular joint?

Answer 4

elevation and depression
anterior and posterior rotation
retraction and protraction

Question 5

what are the ligaments of the acromioclavicular joint?

Answer 5

coracoacromial, coracoclavicular, conoid (medial), trapezoid (lateral)

Question 6

what are the motions of the acromioclavicular joint?

Answer 6

elevation and depression
anterior and posterior rotation
retraction and protraction

Question 7

what are the motions of the scapulothoracic articulation?

Answer 7

elevation and depression
anterior and posterior tilt
protraction and retraction

Question 8

what is the glenoid fossa orientation?

Answer 8

lateral, superior, anterior

Question 9

what is the humeral head orientation?

Answer 9

medial, superior, posterior

Question 10

what are the 8 major ligaments of the shoulder?

Answer 10

sternoclavicular
conoid
trapezoid
coracoacromial
coracohumeral
superior glenohumeral
middle glenohumeral
inferior glenohumeral

Question 11

what ligament is sprained in anterior shoulder dislocation?

Answer 11

inferior glenohumeral

Question 12

what are the roots of the brachial plexus?

Answer 12

C5-C8, T1
ventral rami of cervical spinal nerves

Question 13

what are the roots for the superior trunk?

Answer 13

C5-C6

Question 14

what are the roots for the middle trunk?

Answer 14

C7

Question 15

what are the roots for the inferior trunk?

Answer 15

C8-T1

Question 16

what are the terminal branches of the ventral rami and nerve roots?

Answer 16

phrenic C3-C5
dorsal scapular C4-C5
long thoracic C5-C7

Question 17

what are the terminal branches of the superior trunk and their roots?

Answer 17

suprascapular C5-C6
nerve to subclavius C5-C6

Question 18

what ate the terminal branches of the lateral cord and their roots?

Answer 18

lateral pectoral C5-C7
branch to median n. C5-C7
musculocutaneous C5-C7

Question 19

what are the terminal branches of the posterior cord and their roots?

Answer 19

upper subscapular C5-C6
middle subscapular C6-C8
lower subscapular C5-C6
axillary C5-C6
radial C5-T1

Question 20

what are the terminal branches of the medial cord and their roots?

Answer 20

medial pectoral C8-T1
medial brachial/ antebrachial
branch to median n.
ulnar
median

Question 21

what is the blood supply to the shoulder girdle?

Answer 21

subclavian artery turns into the axillary artery at the 1st rib
it has 3 parts (screw the lawyer save a patient)

Question 22

what is the innervation and function of the trapezius?

Answer 22

innervation: CN 11, C3-C4
function: elevation/depression, upward rotation, scapular retraction

Question 23

what is the innervation and function of the latissimus dorsi?

Answer 23

innervation: thoracodorsal n. C6-C8 (TouchDownn68)
function: IR, ADD, EXT of arm and expiration

Question 24

what is the innervation and function of the levator scapulae?

Answer 24

innervation: dorsal scapular
function: elevation and downward rotation of scapula

Question 25

what is the innervation and function of the rhomboids?

Answer 25

innervation: dorsal scapular function: ADD and downward rotation of scapular

Question 26

what is the innervation and function of the supraspinatus?

Answer 26

innervation: suprascapular function: ABD and stabilization of the humeral head

Question 27

what is the innervation and function of the infraspinatus?

Answer 27

innervation: suprascapular function: ER and stabilization of the humeral head

Question 28

what is the innervation and function of the teres minor?

Answer 28

Innervation: axillary function: ER and stabilization of the humeral head

Question 29

what is the innervation and function of the teres major?

Answer 29

innervation: lower subscapular function: IR, EXT, ADD

Question 30

what is the innervation and function of the triceps brachii?

Answer 30

innervation: radial function: shoulder ADD and EXT, elbow EXT

Question 31

what is the innervation and function of the deltoid?

Answer 31

innervation: axillary function: FLX, IR, ABD, EXT, ER

Question 32

what is the innervation and function of the subclavius?

Answer 32

innervation: subclavian function: depression of the clavicle

Question 33

what is the innervation and function of the sternocleidomastoid?

Answer 33

Innervation: CN 11 function: (I) FLX and SB, (C) rotation, elevation of thorax and shoulder

Question 34

what is the innervation and function of the pectoralis major?

Answer 34

innervation: lateral and medial pectoral function: IR, FLX, ADD of arm

Question 35

what is the innervation and function of the pectoralis minor?

Answer 35

innervation: medial pectoral function: depression and anterior tilt of scapula, elevation of ribs

Question 36

what is the innervation and function of the biceps brachii?

Answer 36

innervation: musculocutaneous function: FLX of arm and forearm, ADD of GH, supination of forearm

Question 37

what is the innervation and function of the serratus anterior?

Answer 37

innervation: long thoracic (SALT57) function: protraction, hold scapula to thorax, upward rotation of scapula, elevation of ribs

Question 38

what is the innervation and function of the coracobrachialis?

Answer 38

innervation: musculocutaneous function: ADD/FLX of GH

Question 39

what is the innervation and function of the omohyoid?

Answer 39

innervation: ansa cervicalis function: depression of hyoid

Question 40

what is the innervation and function of the subscapularis?

Answer 40

innervation: upper and lower subscapular function: ADD, IR

Question 41

what are the boundaries and contents of the quadrangular space?

Answer 41

boundaries: teres minor/major, triceps long head, humeral surgical neck contents: axillary n., posterior circumflex humeral a.

Question 42

what are the boundaries and contents of the triangular space?

Answer 42

boundaries: teres minor/major, triceps long head contents: circumflex scapular a.

Question 43

what are the boundaries and contents of the triangular interval?

Answer 43

boundaries: teres minor, lateral head of triceps contents: radial n., deep brachial a.