chapter 4 arthrokinematics

Question 1

Voluntary Motion (Physiologic, Classic)

Answer 1

Axial Motion
Under our voluntary control
Resistance at the end of range is called end feel

Question 2

Accessory Motion

Answer 2

Accompanies voluntary motion but not in our control – we can not voluntarily/actively cause accessory motions

Question 3

Traction

Answer 3

May also be called distraction or tension or tensile

Outside force pulls joint surfaces away from each other

Question 4

compression

Answer 4

External force pushes joint surfaces closer together

Question 5

shear

Answer 5

Forces occur parallel to surface
Glide motion at joint
Causes bone ends to move parallel to and in opposite direction from each other

Question 6

rotary

Answer 6

Twisting motion
Combination of compression & shear

Question 7

what are the 4 types of joint forces

Answer 7

traction, rotary, shear, compression

Question 8

spin joint

Answer 8

Same point on each surface remains in contact with each other

Question 9

slide joint

Answer 9

Motion is linear
Surfaces are congruent (//)
Same point on one surface comes into contact with new points on the opposing surface

Question 10

what are the types of arthokinematics ?

Answer 10

Roll

Glide or slide

Spin

Combination of roll, glide & spin

Question 11

the types of joints surfaces

Answer 11

Concave
Convex
Sellar

Question 12

what does arthokinematics mean?

Answer 12

how joint surfaces move on each other during joint motion

Question 13

what does Osteokinematic motion mean

Answer 13

as one bone moving on another, causing such motions as flexion, extension, abduction, adduction, or rotation.

Question 14

when rolling what is the surfaces?

Answer 14

incongruent

Question 15

what are the terms of sliding motion of the joint?

Answer 15

Direction depends on whether the moving surface is concave or convex.,

Motion is linear,

Surfaces are congruent (//)

Question 16

what does closed packed mean and the advantage?

Answer 16

when the joint surfaces are most congruent and more stability

Question 17

what does open pack mean

Answer 17

the joint surfaces are more laxity and increased ligaments also a decreased of congruceny

Question 18

what does a firm end feel mean

Answer 18

tissues that limit motion such as knee extension when a normal length of hamstring are present

Question 19

hard end feel mean

Answer 19

bone contacting to other bone such as the olecranon fossa touches the humerus olecranon fossa

Question 20

the rules of concave/convex

Answer 20

a concave joint on a convex surface will glide same direction

a convex joint on a concave surfaces will glide opposite

Question 21

what do fibrous cartilage mean

Answer 21

they Are joined by ligament, capsule, and interosseous membrane

Question 22

cartilaginous joint function?

Answer 22

act as shock absorber define as hyaline or fibrocartilage

Question 23

sprains define

Answer 23

tear of ligaments or capsules

Question 24

strain define

Answer 24

tear of muscles

Question 25

capsular pattern

Answer 25

the lost motion when a capsular tightness is present