Shoulder

Question 1

ligaments of the shoulder region

Answer 1

costoclavicular ligament
anterior sternoclavicular ligament
articular disc (sliding and gliding)
interclavicular ligament

Question 2

ligaments that hold scapula/clavicle together

Answer 2

coracoclavicular and acromioclavicular ligament

Question 3

dislocation of shoulder

Answer 3

separation of humeral head and scapula

Question 4

ligament that protects humeral head

Answer 4

coracoacromial ligament

Question 5

rotator cuff & attachments

Answer 5

lesser tubercle (anterior): subscapularis 
greater tubercle (lateral): supraspinatus, infraspinatus, teres minor

Question 6

action of subscapularis

Answer 6

internal rotation

Question 7

action of infraspinatus/teres minor

Answer 7

external rotation

Question 8

action of supraspinatus

Answer 8

abduction

Question 9

primary action of the rotator cuff

Answer 9

hold head of humerus against glenoid fossa

Question 10

attachment of long head

Answer 10

supraglenoid rubercle

Question 11

attachment of short head

Answer 11

coracoid process

Question 12

how is shoulder abduction accomplished

Answer 12

total = 180 degrees
humeral = 120 degrees
scapula = 60 degrees

Question 13

clavicular action during rotation

Answer 13

anterior surface moves up as coracromial ligament tightens

Question 14

external rotators of shoulder

Answer 14

infraspinous, teres minor (posterior)

Question 15

internal rotators of shoulder

Answer 15

suprascapularis, pectoralis major (anterior/transverse)

Question 16

flexors of shoulder

Answer 16

anterior/longitudinal (biceps, coracobrachialis, deltoid, pec major)

Question 17

extensors of shoulder

Answer 17

teres major, triceps, latissimus dorsi

Question 18

scapular protraction

Answer 18

serratus anterior ()

Question 19

scapular retraction

Answer 19

trapezius/rhomboids (–>

Question 20

superior rotation of scapula

Answer 20

serratus anterior, trapezius

Question 21

elevation of scapula

Answer 21

trapezius, levator scapulae, rhomboids

Question 22

depression of scapula

Answer 22

trapezius, pec minor

Question 23

inferior rotation of scapula

Answer 23

levator scapulae, rhomboids

Question 24

collateral shoulder circulation

Answer 24

subclavian –> axillary, suprascapular artery and transverse cervical artery

brachial –> circumflex scapular and subscapular artery

These superior and inferior branches anastomose!