Shoulder Complex

Question 1

GH joint resting position

Answer 1

55 deg ABD
30 deg HAD
slight ER

Question 2

GH closed packed position

Answer 2

Full ABD and ER

Question 3

GH capsular pattern

Answer 3

ER > ABD > flex > IR

if you have an issue at the joint, then you will lose certain ROM’s first

Question 4

The Shoulder Girdle

Answer 4

2 clavicles
2 scapulas
2 SC joints
2 AC joints
2 ST joints
(some reference include GH joint)

Question 5

SC joint

Answer 5

clavicle on sternum
saddle joint
claVicle is conVex in eleVation
Fibrocartilaginous articular disc

Question 6

SC joint resting position

Answer 6

arm @ side

Question 7

SC closed packed position

Answer 7

full elevation

Question 8

SC capsular pattern

Answer 8

HAD and full elevation

Question 9

AC joint

Answer 9

acromion on lateral clavicle
plane gliding joint (A/P glide)
functionally tri-axial (Lax capsule w/ flexible disc)

Question 10

AC joint resting position

Answer 10

arm @ side

Question 11

AC closed pack position

Answer 11

90 deg ABD

Question 12

AC capsular pattern

Answer 12

pain @ extremes of ROM

Question 13

ST joint

Answer 13

concave scapula glides over convex thoracic spine

Question 14

ST joint location

Answer 14

sagittal plane - tipped 10 deg forward
transverse plane - 30 deg anterior to frontal plane
frontal plane - parallel to vertebral column

Question 15

17 muscles that originate or insert onto scapula

Answer 15

Trapezius
Levator Scapulae
Rhomboid Major
Rhomboid Minor
SA
Infraspinatus
Supraspinatus
Teres minor
Subscapularis
Teres major
Deltoid (middle & posterior)
Biceps (long head)
Biceps (short head)
Coracobrachialis
Pec. Minor
Triceps (long head)
Omohyoid

Question 16

Upward/Downward Rotation ROM

Answer 16

60 deg

Question 17

Protraction/Retraction ROM

Answer 17

15 cm

Question 18

Elevation/Depression ROM

Answer 18

12 cm

Question 19

1st 30 deg of ABD (in Scapulohumeral Rhythm)

Answer 19

Rotator Cuff and Deltoid only move Humerus

Scapula stabilized against rib cage

Question 20

Shoulder Elevation (in Scapulohumeral Rhythm)

Answer 20

(180 deg)
60 deg from ST
120 deg from GH
0-30 deg scapular setting then 2:1 ratio kicks in

Question 21

Clavicle Movement

Answer 21

Scapula upward rotation = distal clavicle elevates to 30 deg

Costoclavicular & Coracoclavicular Ligaments taught

This causes a posterior 45 deg. rotation of clavicle (to get the final 60 deg of scapular ROM)

Question 22

AC joint movement

Answer 22

Pivot point

Question 23

Scapular Movement

Answer 23

0-30 deg: scapular setting, minimal scapular movement

30-60 deg: Glenoid fossa rotates up, axis @ AC joint by 90-100 deg. of elevation

Question 24

3 main force couples

Answer 24

1. Down rotation & ADD = LS, Rhomboids, Pec. Minor
2. Up rotation and ABD = UT, LT, SA
3. ABD = Rotator Cuff & Deltoid

Question 25

Borders of Axilla

Answer 25

Anterior = Pecs & Subclavius
Posterior = Lats, Subscap., Teres Major
Medial = S.A.
Lateral = Humerus