Shoulder complex

Question 1

the GH joint makes ___ % of motion

Answer 1

2/3

Question 2

the ST makes up __ % of motion

Answer 2

1/3

Question 3

active forces provide _______ control than passive

Answer 3

greater
this is dynamic stabilization

Question 4

upper thoracic rotations occurs __________ with shoulder elevation

Answer 4

ipsilaterally

Question 5

the SC joint has how many degrees of freedom

Answer 5

3
elevate/depress
protraction/retraction
A/P rotation

Question 6

SC elevation/depression happens between

Answer 6

disc and clavicle

Question 7

SC protraction/retraction happens between

Answer 7

disc and manubrium

Question 8

SC rotation happens between

Answer 8

clavicle and 1st rib costocartilage

Question 9

superior joint of the synovial SC joints

Answer 9

medial clavicle and disc

Question 10

inferior joint of synovial SC joints

Answer 10

medical clavicle with manubrium and first costal cartilage

Question 11

during SC elevation and depression, what happens?

Answer 11

clavicle rolls and glides on disc

Question 12

during SC protraction/retraction, what happens

Answer 12

SC disc and clavicle roll and slide on manubrium

Question 13

anterior and posterior SC capsules limit what motion

Answer 13

both limit A/P translation
** posterior is primary

Question 14

what motion does the costoclavicular ligament limit

Answer 14

elevation of lateral clavicle
superior pull of SCM and sternohyoids

Question 15

in the costoclavicular ligament the anterior fibers run _______ and the posterior fibers run _______

Answer 15

anterior fibers run laterally
posterior run medially

Question 16

what motion does the interclavicular ligament resist?

Answer 16

excessive depression of clavicle
superior gliding

Question 17

SC elevation:
lateral end of clavicle moves ___
medial end rolls _______ and slides _______

Answer 17

upwards
rolls superiorly
slides inferiorly