Wrist & Hand - Joints & Ligaments

Question 1

Contents of triangular fibrocartilage complex? (7)

Answer 1

dorsal and palmar radioulnar ligaments

triangular fibrocartilage

ulnolunate and ulnotriquetral ligs

meniscus homolog
UCL

Question 2

Scaphoid, lunate and triquetrium at RCJ are held together by what ligaments?

Answer 2

intercarpal interosseus ligs

Question 3

RCL origin/insertion

Answer 3

O - radial styloid process

I - scaphoid and trapezium

Question 4

RCL action

Answer 4

resist ulnar deviation (adduction) of RCJ

Question 5

UCL origin/insertion

Answer 5

O - ulnar styloid process

I - triquetrium and pisiform

Question 6

UCL action

Answer 6

resist radial deviation (abduction) of RCJ

Question 7

UCL has 2 branches. What are they?

Answer 7

dorsal and volar

Question 8

Palmar radiocarpal ligament origin/insertion

Answer 8

O - distal radius

I - proximal carpals (in two bands)

Question 9

PRL function

Answer 9

oriented so that hand follows radius in supination of forearm

Question 10

Dorsal radiocarpal ligament is stronger or weaker than palmar radiocarpal ligs?

Answer 10

DRL weaker than PRL

Question 11

Function of DRL?
joins both collateral ligs

Answer 11

oriented so that hand follows radius in pronation of forearm

Question 12

What ligaments holds the heads of the MC’s together?

Answer 12

deep transverse metacarpal ligaments

Question 13

What ligaments reinforce the MCP joint capsules to the palmar aspect?

Answer 13

palmar ligaments

Question 14

Each MCP joint has a _______ and _______

Answer 14

radial collateral lig

ulnar collateral lig

Question 15

RCLs and UCLs of the MCP joints run from…

Answer 15

obliquely from dorsal aspect of MC head to palmar aspect of proximal phalange

Question 16

MCP joint movements

Answer 16

flex/ext

add/abd

Question 17

IP joint movements

Answer 17

flex/ext

Question 18

A broad, flattened tendon

Answer 18

aponeurosis

Question 19

What articulates at the DRUJ?

Answer 19

ulnar head and ulnar notch of radius

Question 20

DRUJ movements

Answer 20

pronation

supination

Question 21

DRUJ joint type

Answer 21

synovial

Question 22

What is the wrist joint proper?

Answer 22

RCJ

Question 23

What articulates at RCJ?

Answer 23

radius

TFCC

scaphoid, lunate, triquetrum

Question 24

RCJ movements

Answer 24

flex/ext

add/abd

Question 25

IC joint type?

Answer 25

synovial plane

Question 26

IC joints involve articulations where?

Answer 26

bw proximal carpals

midcarpal joint involves articulation bw proximal and distal carpals

bw distal carpals

Question 27

CMC joint type?

Answer 27

CMC 2-5 synovial plane

CMC 1 saddle

Question 28

1st CMC joint movements

Answer 28

flex/ext
add/abd
opp/rep

Question 29

MCP joint type

Answer 29

synovial

Question 30

Increasing loads at the wrist causes inscreased compression at the

Answer 30

TFCC