bio mechanics exam 2

Question 0

ACJ superior and inferior lig what does the superior lig limit

Answer 0

limits posterior movement

Question 1

SJC ant and post fibers limit what and contribute to what movement

Answer 1

limits elevation and contributes to inferior glide of clavicle

Question 2

ACJ is the coracoclavicular joint which is made up of what two ligaments

Answer 2

Conoid and trapezoid

Question 3

ACJ Coracoclavicular (conoid) resists and limits and does what motion

Answer 3

resists distal clavicular superior motion
limits upward rotation of scap
posteriorly rotates clavicle

Question 4

ACJ coracoclavicular (Trapezoid) limits and does what motion

Answer 4

Limits post displacement of clavicle
limits upward rotation of scapula
posteriorly rotates clavicle

Question 5

GHJ capsule Loose or tight

Answer 5

loose ant and inferior
tight superiorly
creates intraticular pressure

Question 6

GHJ ant stable up to how many degrees

Answer 6

60 abduction

Question 7

GHJ inferior ligaments at what degrees of abd is inferior translation resisted

Answer 7

45

Question 8

Inferior gleno humeral ligament resists

Answer 8

ER resists anterior translation

IR resists post translation

Question 9

coracohumeral ligament

Answer 9

limits inferior translation

Question 10

SCJ frontal plane is

Answer 10

convex concave roll and slide

Question 11

SJC elevation and depression degrees?

Answer 11

elevation 48

depression 10

Question 12

SCJ transverse plane

Answer 12

concave convex protraction retraction

Question 13

SJC protraction and retraction degrees

Answer 13

protraction 20

retraction 30

Question 14

SJC sagital plane post rotation and ant rotation degrees

Answer 14

anterior rotation less then 10 degrees

posterior rotation 50 degrees

Question 15

ACJ ant /post tilt
upward downward rotation
IR/ER degrees

Answer 15

ant/post 20- 40
upward/ downward rotation 30
IR/ER 30

Question 16

Scapulo thoracic joint coronal plane frontal plane

Answer 16

30-45

Question 17

Scapulo thoracic joint anterior tilted

Answer 17

10-15

Question 18

Scapulo thoracic joint upward rotation

Answer 18

10 degrees

Question 19

Scapulo thoracic joint can upwardly rotate up to how many degrees

Answer 19

60 coupled with post rotation os SCJ and clavicular elevation

Question 20

Scapulo thoracic joint elevation/depression

protraction/retraction occur at what joint

Answer 20

SCJ

Question 21

Scapulo thoracic joint
IR/ER
ant/post tilt occur at what joint

Answer 21

ACJ

Question 22

Scapulo rythm

Answer 22

elevation of humerus
upward rotation of scap
post tilt of scap
2:1 ratioGHJ :STJ