Musculoskeletal System: Joint Packed Positions

Question 1

Facet (spine) Loose Packed Position

Answer 1

Midway between Flexion and Extension

Question 2

Facet (spine) Open Packed Position

Answer 2

Extension

Question 3

Temporomandibular Loose Packed Position

Answer 3

Mouth slightly open (freeway space)

Question 4

Temporomandibular Closed Packed Position

Answer 4

Clenched teeth

Question 5

Glenohumeral Loose Packed Position

Answer 5

55 degrees abduction, 30 degrees horizontal adduction

Question 6

Glenohumeral Closed Packed Position

Answer 6

Abduction and External Rotation

Question 7

AC joint Open Packed Position

Answer 7

Normal physiological position

Question 8

AC joint Closed Packed Position

Answer 8

Arm abducted to 90 degrees

Question 9

SC Open Packed Position

Answer 9

Normal physiological position

Question 10

SC Closed Packed Position

Answer 10

Maximal shoulder elevation

Question 11

Ulnohumeral (elbow) Open Packed Position

Answer 11

70 degrees flexion, 10 degrees supination

Question 12

Ulnohumeral (elbow) Closed Packed Position

Answer 12

Extension

Question 13

Radiohumeral Open Packed Position

Answer 13

Full extension, full supination

Question 14

Radiohumeral Closed Packed Position

Answer 14

Elbow flexed 90 degrees, forearm supinated 5 degrees

Question 15

Proximal radioulnar Open Packed Position

Answer 15

70 degrees flexion, 35 degrees supination

Question 16

Proximal radioulnar Closed Packed Position

Answer 16

5 degrees supination

Question 17

Distal radioulnar Open Packed Position

Answer 17

10 degrees supination

Question 18

Distal radioulnar Closed Packed Position

Answer 18

5 degrees supination

Question 19

Radiocarpal (wrist) Open Packed Position

Answer 19

Neutral with slight ulnar deviation

Question 20

Radiocarpal (wrist) Closed Packed Position

Answer 20

Extension with radial deviation

Question 21

Carpometacarpal Open Packed Position

Answer 21

Midway between abduction/adduction and flexion/extension

Question 22

Metacarpophalangeal Open Packed Position

Answer 22

Slight flexion

Question 23

Metacarpophalangeal (fingers) Closed Packed Position

Answer 23

Full flexion

Question 24

Metacarpophalangeal (thumb) Closed Packed Position

Answer 24

Full opposition

Question 25

Interphalangeal Open Packed Position

Answer 25

Slight flexion

Question 26

Interphalangeal Closed Packed Position

Answer 26

Full extension

Question 27

Hip Open Packed Position

Answer 27

30 flexion, 30 abduction, slight external rotation

Question 28

Hip Closed Packed Position

Answer 28

Full extension and internal rotation

Question 29

Knee Open Packed Position

Answer 29

25 degrees of flexion

Question 30

Knee Closed Packed Position

Answer 30

Full extension, ER rotation of tibia

Question 31

Talocrural (ankle) Open Packed Position

Answer 31

10 degrees of plantar flexion, midway between inversion/eversion

Question 32

Talocrural (ankle) Closed Packed Position

Answer 32

Maximum dorsiflexion

Question 33

Subtalar Open Packed Position

Answer 33

Midway between extremes

Question 34

Subtalar Closed Packed Position

Answer 34

Supination

Question 35

Midtarsal Open Packed Position

Answer 35

Midway between extremes

Question 36

Midtarsal Closed Packed Position

Answer 36

Supination

Question 37

Tarsometatarsal Open Packed Position

Answer 37

Midway between extremes

Question 38

Tarsometatarsal Closed Packed Position

Answer 38

Supination

Question 39

Metatarsophalangeal Open Packed Position

Answer 39

Neutral

Question 40

Metatarsophalangeal Closed Packed Position

Answer 40

Full Extension

Question 41

Interphalangeal Open Packed Position

Answer 41

Slight flexion

Question 42

Interphalangeal Closed Packed Position

Answer 42

Full extension