Shoulder and Arms

Question 0

T/F the subacromial and scapulothoracic joints are true joints

Answer 0

F

Question 1

Joint along the axial skeleton with the least movement

Answer 1

vertebrocostal

Question 2

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

Answer 2

clavicle

Question 3

The sternoclavicular joint is formed by the

Answer 3

sternal end of the clavicle and the manubrium of the sternum

Question 4

The acromioclavicular joint is formed by the

Answer 4

acromion of the scapula and the acromial end of the clavicle

Question 5

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

Answer 5

conoid tubercle

Question 6

this structure deepens the glenoid fossa by 2.5cm

Answer 6

glenoid labrum

Question 7

[origin] short head of biceps

Answer 7

coracoid process of the scapula

Question 8

Which among the gleno-huneral ligament is the strongest?

Answer 8

middle glenohumeral ligament

Question 9

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

Answer 9

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

Question 10

The scapula is oriented

Answer 10

anterolaterally

Question 11

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

Answer 11

T

Question 12

T/F the deltoid has an attahment to the scapula

Answer 12

T; deltoid tubercle at the spine

Question 13

Muscle that attaches to the acromion

Answer 13

trapezius

Question 14

[origin] subscapular muscle

Answer 14

subscapular fossa

Question 15

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

Answer 15

superior border

Question 16

what runs in the deltopectoral groove?

Answer 16

cephalic vein

Question 17

[action] descending fibers of the trapezius

Answer 17

Elevate the scapula

Question 18

[action] middle fibers of the trapezius

Answer 18

retracts scapula

Question 19

[action] ascending fibers of the trapezius

Answer 19

depresses the scapula

Question 20

[action] levator scapulae

Answer 20

elevates scapula

rotates scapula together with rhomboids and pectralis minor

Question 21

Rhomboids Major and Minor

Answer 21

(RRR)

retract and rotate scapula

Question 22

[action] serratus anterior

Answer 22

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

Question 23

[action] deltoid

Answer 23

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

Question 24

[action] rotator cuff

Answer 24

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

Question 25

[action] latissimus dorsi

Answer 25

adducts and rotates humerus

Question 26

[action] teres major

Answer 26

adducts and medially rotates humerus

Question 27

[action] pectoralis major

Answer 27

medially rotates arm

Question 28

[action] pectoralis minor

Answer 28

stabilizes scapula, elevates ribs

Question 29

[action] subclavius

Answer 29

depresses clavicle

Question 30

what does the circumflex scapular artery supply?

Answer 30

infraspinatus, supraspinatus, subscapularis

Question 31

Congenital absence of the clavicle

Answer 31

cleidocranial dystosis/aplasia

Question 32

Sprengel's deformity

Answer 32

high scapula or congenital high scapula

Question 33

common site of fracture in the humerus

Answer 33

surgical neck

Question 34

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

Answer 34

capitulum

Question 35

what part if the humerus articulates with the ulna?

Answer 35

trochlea

Question 36

T/F arm flexors are stronger than arm extensors

Answer 36

T

Question 37

What muscle is the main flexor of the forearm?

Answer 37

brachialis

Question 38

The main extensor of the forearm is the

Answer 38

medial head of the triceps

Question 39

[type of joint] humeroulnar

Answer 39

ginglymus

Question 40

[type of joint] humeroradial

Answer 40

condyloid

Question 41

[type of joint] radioulnar

Answer 41

condyloid

Question 42

[innervation] triceps

Answer 42

radial nerve

Question 43

the musculocutaneous nerve innervates

Answer 43

biceps, brachialis, coracobrachialis

Question 44

which carpal bone is most frequently injured?

Answer 44

scaphoid

Question 45

what does the axillary nerve innervate?

Answer 45

teres minor, deltoids