Shoulder and Arms Flashcards Preview

OS 203 Finals > Shoulder and Arms > Flashcards

Flashcards in Shoulder and Arms Deck (46):
0

Joint along the axial skeleton with the least movement

vertebrocostal

1

T/F the subacromial and scapulothoracic joints are true joints

F

2

The only skeleton that connects the upper limb to the axial skeleton

clavicle

3

The sternoclavicular joint is formed by the

sternal end of the clavicle and the manubrium of the sternum

4

The acromioclavicular joint is formed by the

acromion of the scapula and the acromial end of the clavicle

5

the coracoclavicular ligament is attached to what part of the clavicle?

conoid tubercle

6

this structure deepens the glenoid fossa by 2.5cm

glenoid labrum

7

[origin] short head of biceps

coracoid process of the scapula

8

Which among the gleno-huneral ligament is the strongest?

middle glenohumeral ligament

9

T/F the deltoid does no work at the first 30 degrees of arm elevation

T; the supraspinatus does the work. the deltoids only work from 30-100 degrees

10

The scapula is oriented

anterolaterally

11

T/F the acromion is continuous with the spine of the scapula

T

12

T/F the deltoid has an attahment to the scapula

T; deltoid tubercle at the spine

13

Muscle that attaches to the acromion

trapezius

14

[origin] subscapular muscle

subscapular fossa

15

Which among the borders of the scapula is thinnest/broadest?

superior border

16

what runs in the deltopectoral groove?

cephalic vein

17

[action] descending fibers of the trapezius

Elevate the scapula

18

[action] middle fibers of the trapezius

retracts scapula

19

[action] ascending fibers of the trapezius

depresses the scapula

20

[action] levator scapulae

elevates scapula
rotates scapula together with rhomboids and pectralis minor

21

Rhomboids Major and Minor

(RRR)
retract and rotate scapula

22

[action] serratus anterior

protracts scapula (e.g. when punching) elevates glenoid cavity

23

[action] deltoid

abducts arm (30-100 degrees) prevent inferior displacement of humerus

24

[action] rotator cuff

supraspinatus - abducts scapula
infraspinatus - laterally rotates the scalula
teres minor - laterally rotates the scapula
subscapularis - medially rotates the scapula

25

[action] latissimus dorsi

adducts and rotates humerus

26

[action] teres major

adducts and medially rotates humerus

27

[action] pectoralis major

medially rotates arm

28

[action] pectoralis minor

stabilizes scapula, elevates ribs

29

[action] subclavius

depresses clavicle

30

what does the circumflex scapular artery supply?

infraspinatus, supraspinatus, subscapularis

31

Congenital absence of the clavicle

cleidocranial dystosis/aplasia

32

Sprengel's deformity

high scapula or congenital high scapula

33

common site of fracture in the humerus

surgical neck

34

what portion of the humerus articulates with the head of the radius?

capitulum

35

what part if the humerus articulates with the ulna?

trochlea

36

T/F arm flexors are stronger than arm extensors

T

37

What muscle is the main flexor of the forearm?

brachialis

38

The main extensor of the forearm is the

medial head of the triceps

39

[type of joint] humeroulnar

ginglymus

40

[type of joint] humeroradial

condyloid

41

[type of joint] radioulnar

condyloid

42

[innervation] triceps

radial nerve

43

the musculocutaneous nerve innervates

biceps, brachialis, coracobrachialis

44

which carpal bone is most frequently injured?

scaphoid

45

what does the axillary nerve innervate?

teres minor, deltoids