Osteokinematics and Arthrokinematics

Question 1

Glenohumeral

Answer 1

Closed: abduction and ER
Open: abduction and horizontal adduction

Question 2

Ulnohumeral

Answer 2

Closed: extension
Open: flexion and supination

Question 3

Radiohumeral

Answer 3

Closed: Elbow flexed 90 degrees, forearm supinated 5 degrees

Open: full extension and supination

Question 4

Radiocarpal

Answer 4

closed: extension with radial deviation
open: neutral with slight ulnar deviation

Question 5

Hip

Answer 5

closed: full extension and IR
open: flexion, abduction, ER

Question 6

Knee

Answer 6

closed: full extension and ER rotation of tibia
open: flexion

Question 7

Talocrural

Answer 7

Closed: max DF
Open: PF and neutral subtalar

Question 8

The rolling component of roll-glide always occurs in the ___ direction as the bone movement

Answer 8

SAME

Question 9

Convex on concave

Answer 9

roll and glide occur in opposite directions

Question 10

Concave on convex

Answer 10

roll and glide occur in same direction

Question 11

Joints with CONVEX moving on CONCAVE

Answer 11

1. sternoclavicular* (with elevation)
2. glenohumeral
3. Proximal radioulnar
4. Radiocarpal
5. Hip
6. Patellofemoral
7. Distal tibiofibular
8. Talocrural
9. Tempromandibular

Question 12

Tricky bones

Answer 12

1. humerus is CONCAVE both ends
2. The tibia is convex with proximal and concave with distal
3. fibula is concave with proximal and convex with distal
4. Fibula is the primary mover
5. Subtalar–the calcaneus is not fixed, so concave-convex rule does not apply in the same way

Question 13

Suture

Answer 13

-union of two bones by ligament or membrane
-immovable joint
-skull joints

Question 14

Fibrous or synarthoses joints

Answer 14

SUTURE
SYNDESMOSIS
GOMPHOSIS

Question 15

Syndesmosis

Answer 15

bone connected to bone by dense fibrous membrane or cord

interosseous membrane

Question 16

Gomphosis

Answer 16

-two bony surfaces connect as a peg in a hole
-teeth are the only type

Question 17

Cartilaginous or Amphiarthroses Joints

Answer 17

SYNCHONDROSIS
SYMPHSYS

Question 18

Syncondrosis

Answer 18

-hyaline cartilage
-cartilage attaches two adjoining bones together
-sternum and true rib articulations

Question 19

Symphysis

Answer 19

Two bones covered with hyaline and connected with fibrocartilage

pubic bone

Question 20

Synovial joints

Answer 20

Uniaxial = HINGE, PIVOT

Biaxial = CONDYLOID, SADDLE

Multi-axial = PLANE, BALL & SOCKET

Question 21

Condyloid

Answer 21

MCP joints
radiocarpal

Question 22

Saddle

Answer 22

CMC of the thumb
sternoclavicular

Question 23

Plane joints

Answer 23

gliding motion

carpal
SI joint
facets of spine
AMC joint