Wrist

Question 1

function of the wrist

Answer 1

important - loss of function cannot be compensated for at shoulder or elbow

Question 2

the wrist functions to ?

Answer 2

maintain optimal length/ tension relationships and adjust grip

Question 3

the position of the wrist

Answer 3

alters the function of the hand

Question 4

how many distal phalanges

Answer 4

5

Question 5

how many middle phalanges

Answer 5

4

Question 6

proximal phalanges

Answer 6

5

Question 7

metacarpals

Answer 7

5

Question 8

carpals

Answer 8

8

Question 9

wrist (radiocarpal) complex

Answer 9

composed of radiocarpal, midcarpal and intercarpal joints

Question 10

the joints work together to?

Answer 10

increase available range with less exposed articular surface and structural pinch at end range

Question 11

flexion

Answer 11

75 degrees

Question 12

extension

Answer 12

70 degrees

Question 13

radial deviation

Answer 13

20 degrees

Question 14

ulnar deviation

Answer 14

30 degrees

Question 15

ADLS require at least ?

Answer 15

45 degrees of sagittal plane motion

Question 16

proximal side

Answer 16

radius and TFCC

Question 17

The TFCC accepts how much compressive force?

Answer 17

20%

Question 18

distal side

Answer 18

scaphoid, lunate, and triquetrum

Question 19

articulation

Answer 19

lateral radial facet with scaphoid
medial radial facet with lunate

Question 20

TFCC

Answer 20

triangle shape compressible fibrocartilaginous disc with numerous fibrous attachments on the ulnar side of the wrist that is compressible adding to wrist ROM

Question 21

radial inclination

Answer 21

22

Question 22

radial tilit

Answer 22

11

Question 23

proximal row

Answer 23

scaphoid, lunate, triquetrum

Question 24

distal row

Answer 24

trapezium, trapezoid, capitate, hamate

Question 25

the palmar side is

Answer 25

a concave "tunnel" roofed by the transverse carpal ligament

Question 26

carpal tunnel

Answer 26

contains tendons of extrinsic flexors (except FCR) and median nerve

Question 27

the carpal tunnel is the attachment site for ?

Answer 27

palmaris longus

Question 28

ligaments of the wrist

Answer 28

extrinsic - connect carpals to radius or ulna intrinsic - run from carpal to carpal

Question 29

what is the axis of motion?

Answer 29

capitate

Question 30

where does the motion occur?

Answer 30

radiocarpal and midcarpal simultaneously

Question 31

how many degrees of freedom

Answer 31

2 flexion/extension ulnar/radial deviation

Question 32

where does the central column of the wrist run through

Answer 32

radius, lunate, capitate, and 3rd metacarpal