Arm kinesiology

Question 1

Osteokinematic movement

Answer 1

Voluntary mvmt of our bony levers through their ROM

Question 2

Arthrokinematic movement

Answer 2

small, involuntary mvmts between the articulating joint surfaces

Question 3

basic Arthrokinematic types of motion

Answer 3

Roll, slide, spin

Question 4

Concave moving on convex

Answer 4

Slide occurs in the same direction

Question 5

Convex moving on concave

Answer 5

Slide occurs in the Opposite direction

Question 6

Closed packed position (CPP)

Answer 6

-Greatest stability in this position
-Joint surfaces are maximally congruent
-surrounding ligaments and joint capsule are taut in this position

Question 7

Open packed position (OPP)

Answer 7

Joint surfaces are relatively free to move in relation to one another
PROM/AROM and joint play occur here

Question 8

Capsular pattern

Answer 8

Typical pattern of limitation in a joint’s mvmnt if the capsule is the structure limiting it’s movment

Question 9

Costoclavicular ligament

Answer 9

limits clavicular elevation during GH abduction during the last 90 degrees

Question 10

Movements at SC joint

Answer 10

-Protraction/retraction
occurs in transverse plane/vericalt axis
roll/slide in same direction
-Elevation/depression
Frontal/coronal plane; ant/post axis
roll/slide in opposite direction
-Clavicular rotation (S-shaped bone)
Mechanical axis

Question 11

The clavicle is S shaped because

Answer 11

To allow the nerve plexus to pass through

Question 12

Movements at AC joint

Answer 12

-Pro/retraction & Medial rotation (of acromion on clavicle)
allows scapula to appose thoracic wall
Transverse plane: Vert axis
- Upward tip
sag plane: mediolateral axis
-Sup/inferior scapular rotation
frontal plane: anteroposterior axis

Question 13

AC Closed pack position (CPP)

Answer 13

90-120 degrees abduction

Question 14

SC Closed packed position

Answer 14

Full elevation

Question 15

Labrum of GH joint

Answer 15

Lines the glenoid
increases congruency, deepens the glenoid fossa
redundant capsular fold made up of fibrocartilage

Question 16

Coracohumeral lig.

Answer 16

comprised of 2 bands: sup/inf.
limits external rotation

Question 17

Glenohumeral Lig.

Answer 17

Comprised of 3 bands: sup. middle, inf. bands “Z shape” limits horizontal abduction

Question 18

Coracoacromial lig.

Answer 18

One band thst arches over GH joint
limits superior displacement of the head of the humerus

Question 19

Bursae of GH joint

Answer 19

Subdeltoid
Subacromial
Subscapular

Question 20

Scaption

Answer 20

Scaption is shoulder elevation in the scapular plane
the plane is 30-40 degrees anterior to the true frontal plane

Question 21

GH Joint capsular pattern

Answer 21

(First to last to be affected)
External rotation > abduction > internal rotation

Question 22

Scapulothoracic (ST) joint

Answer 22

Not a true joint, describes the relationship between scapula and thoracic wall

Question 23

Movements at ST joint

Answer 23

-Elevation/Depression
frontal plane, elevation involves anterior tip
-Pro/retraction
transverse plane
protraction involves abduction and medial rotation (retraction:opposite)

Question 24

Glenohumeral Closed packed position (GH CPP)

Answer 24

Full abduction and external rotation

Question 25

GH typical dislocation

Answer 25

Humerus moves anteroinferiorly

Question 26

Superior scapular rot'n and clavicular elevation occur from which muscles?

Answer 26

action of Upper/lower traps and serratus ant.

Question 27

Reverse SH rhythm

Answer 27

Scapula moves more than the humerus occurs w shoulder hiking in frozen shoulder

Question 28

Tension on the c.c lig. results in _____ rot'n of the clavicle?

Answer 28

Posterior rotation in 90-165 degrees of Abd.

Question 29

AC capsular pattern

Answer 29

Pain at extreme ranges: especially horizontal adduction, and full elevation

Question 30

AC typical dislocation

Answer 30

Clavicle moves superiorly

Question 31

The SC joint serves as the only ____ connection for the entire SH girdle

Answer 31

Bony

Question 32

SC Capsular pattern

Answer 32

Pain at extreme ranges: especially Horizontal adduction and Full elevation

Question 33

SC typical dislocation

Answer 33

Clavicle moves anterior medial.

Question 34

Full abduction of the humerus requires:

Answer 34

External humeral rotation or movement in scaption

Question 35

The ST joint forms a closed kinetic chain w/?

Answer 35

AC/SC joint *The motion of one invariable leads to motion at the others

Question 36

Scapulohumeral rhythm

Answer 36

Relationship between mvmt at the GH and ST joints 1:2 ratio

Question 37

the first 30° of abduction occurs primarily at which joint

Answer 37

GH joint, with Supraspinatus mm as the prime mover the scapula moving only slightly to find a more stable position (scapular setting)

Question 38

From 30-90° abd the scapula moves about an axis of rotation located roughly at?

Answer 38

The base of the spine of the scap.

Question 39

From 90 - 165 degrees of abduction the scapula moves about an axis of rotation located roughly at

Answer 39

The AC joint

Question 40

How is the last 10-15 degrees of SH flex/abd achieved?

Answer 40

Spinal extension/ lateral flexion of the spine

Question 41

This mm is the most active during flex/abd

Answer 41

Deltoid

Question 42

These synergists play an important role to stabilise traps and serratus ant. during scapular rot'n

Answer 42

Rhomboid maj/min