Bones and Joints of the Shoulder

Question 1

What are the articulating surfaces of the GH joint?

Answer 1

glenoid fossa and humeral head

Question 2

What is the classification of the GH joint?

Answer 2

diarthrotic, synovial, ball and socket

Question 3

What are the movements of the GH joint?

Answer 3

Flex/Ex - sagittal plane, med/lat axis;
ABD/ADD - frontal plane, AP axis;
Int/Ext rot., N/A, mech. axis;
Horizontal ABD/ADD, transverse plane, vertical axis.

Question 4

What are the ligaments of the GH joint?

Answer 4

coracoacromial
glenohumeral
transverse humeral
labrum
coracohumeral
capsule
SITS mm tendons

Question 5

What does the coracoacromial ligament do?

Answer 5

it completes the acromial arch.
it prevents superior displacement of the humerus.

Question 6

True or false - the coracoacromial ligament is extracapsular?

Answer 6

True

Question 7

What are the bands of the GH ligament?

Answer 7

superior, middle, inferior

Question 8

The GH ligament limits what?

Answer 8

External rotation, horizontal ABD/ADD

Question 9

What does the transverse humeral ligament limit?

Answer 9

limits lateral displacement of biceps tendon.

Question 10

What is the purpose of the labrum

Answer 10

line and deepen the glenoid fossa

Question 11

What are the 2 bands of the coracohumeral ligament?

Answer 11

superior and inferior

Question 12

What does the coracohumeral ligament limit?

Answer 12

external rotation, supports against gravity

Question 13

Where is the capsule of the GH joint?

Answer 13

the rim of the glenoid fossa and anatomic humeral neck

Question 14

What are the articulating surfaces of the sternoclavicular joint?

Answer 14

the sternal facet of the medial clavicle; superior lateral manubrium; superior costocartilage of rib 1

Question 15

what are the movements permitted in the in sternoclavicular joint?

Answer 15

elevation/depression: frontal plane, AP axis
protraction/retraction: transverse plane, vertical axis
rotation: no plane, mech axis
ABD/Flex terminal ranges
inspiration/expiration

Question 16

Describe the capsule of the SC joint

Answer 16

Relatively lax and thin above and below the joint

Question 17

What are the ligaments of the SC joint?

Answer 17

disc
SC lig.
costoclavicular lig.
interclavicular lig

Question 18

What does the SC ligament limit?

Answer 18

anterior and posterior displacement of the clavicle

Question 19

what does the costoclavicular ligament limit?

Answer 19

clavicular elevation
protraction-retraction
controls shoulder gridle motion during the last 90 degrees of arm ABD

Question 20

how does the costoclavicular ligament attach

Answer 20

from the first rib to the clavicle above in an inferior medial to superior lateral orientation.

Question 21

how does the interclavicular ligament connect?

Answer 21

spans the sternal notch attaching medial clavicles

Question 22

what does the interclavicular ligament limit?

Answer 22

superior/inferior clavicular displacement.

Question 23

What is the joint classification of the SC joint?

Answer 23

multi-axial saddle synovial joint

Question 24

What are the articulating surfaces of the AC joint?

Answer 24

lateral clavicle and medial acromion

Question 25

What is the classification of the AC joint?

Answer 25

non-axial planer synovial joint

Question 26

What are the movements permitted in the AC joint?

Answer 26

protrac/retraction: transverse plane, vertical axis. upward tip/tilt: sagittal plane, med/lat axis. sup./inf. scapular rotation: frontal plane, AP axis

Question 27

What are the ligaments of the AC joint?

Answer 27

capsule (weak) disc (usually gone by 40) AC ligament coracoclavicular sup. transverse scapular lig.

Question 28

What does the AC ligament limit?

Answer 28

prevents overriding of one bone over the other. limits distraction

Question 29

What does the coracoclavicular ligament limit?

Answer 29

posterior and superior clavicular displacement, controls scapular rotation during 1st 90 degree of arm ABD

Question 30

where does the superior transverse scapular ligament attach?

Answer 30

arches over the suprascapular notch

Question 32

What are the bones of the shoulder girdle?

Answer 32

Clavicle and scapula

Question 33

What are the angles of the scapula?

Answer 33

Superior Inferior Lateral Medial

Question 34

What are the borders of the scapula?

Answer 34

Superior Medial (vertrbral) Lateral (axillary)

Question 35

What are the processes of the scapula?

Answer 35

Acromion Coracoid

Question 36

What are the tubercles of the scapula?

Answer 36

Supraglenoid Infraglenoid

Question 37

What are the fossae of the scapula?

Answer 37

Supraspinous Infraspinous Subscapular Glenoid

Question 38

Where is the suprascapular notch?

Answer 38

1/2 laterally on the superior border

Question 39

Where is thespine of the scapula?

Answer 39

Runs inferiomedial and divides the infra and supraspinous fossae

Question 40

What are the necks of the humerus?

Answer 40

Anatomical Surgical

Question 41

What are the tubercles of the humerus?

Answer 41

Greater Lesser

Question 42

What are the grooves of the humerus?

Answer 42

Intertubular/bicipital Radial/spiral

Question 43

What is on the shaft of the humerus?

Answer 43

Deltoid tuberosity

Question 44

What are the supracondylar ridges of the humerus?

Answer 44

Medial - partial att. for common flexor tendon Lateral - partial att. for common extensor tendon

Question 45

What are the epicondyles of the humerus?

Answer 45

Medial and lateral Partial attachment for common flexor and extensor tendon