Forearm and wrist

Question 1

radius: name 3 borders

Answer 1

anterior, posterior, interosseous

Question 2

radius: name 3 surfaces

Answer 2

anterior, posterior, lateral

Question 3

radius: projection on distal end called

Answer 3

radial styloid process

Question 4

radius: 2 facets for articulation

Answer 4

• scaphoid bone

- lunate bone

Question 5

which bone on distal end is thicker? and which projects more?

Answer 5

• radius thicker

- radial styloid process projects more distally

Question 6

ulna: name 3 borders

Answer 6

anterior, posterior, interosseous

Question 7

ulna: name 3 surfaces

Answer 7

anterior, posterior, medial

Question 8

radius: ant/post. dorsal tubercle?

Answer 8

posterior, distal end

Question 9

function of interosseous membrane

Answer 9

stability and facilitate movement of radius and ulna

Question 10

eg. colles fracture

Answer 10

• dinner fork shape
• styloid process of ulna snaps off
• radius protrudes anteriorly

Question 11

eg. monteggia fracture

Answer 11

• radius dislocated at humeral joint

- ulna complete fracture

Question 12

eg. galeazzi fracture

Answer 12

• radius fracture protrudes post.

- while ulna dislocates opp direction (ant.)

Question 13

name carpal bone sentence:

Answer 13

Some Lovers Try Positions That They Can’t Handle

Question 14

proximal carpal bones: lateral - medial

Answer 14

• scaphoid
• lunate
• triquetral/trum
• pisiform

Question 15

distal carpal bones: lateral- medial

Answer 15

• trapezium
• trapezoid
• capitate
• hamate

Question 16

what forms/ covers the ‘carpal arch’?

Answer 16

• proximal carpal bones
• covered by flexor retinaculum
• space: carpal tunnel

Question 17

fracture of carpal bones:

Answer 17

most common scaphoid

Question 18

wrist and midcarpal joints: movement

Answer 18

• abduction
• adduction
• extension
• flexion
• circumduction

Question 19

medial 4 fingers: movement

Answer 19

to the middle finger

• abduction
• adduction
• flexion
• extension

Question 20

thumb: classify/ movement

Answer 20

• saddle joint
• abduction
• adduction (saggital)
• flexion
• extension
  (coronal plane)
• opposition

Question 21

distal radioulnar joint: classification

Answer 21

synovial, pivot

Question 22

distal radioulnar joint: articulating surfaces

Answer 22

• head of ulna

- ulnar notch of radius and articular disc

Question 23

distal radioulnar joint: ligaments

Answer 23

• anterior

- posterior

Question 24

distal radioulnar joint: movements

Answer 24

• supination

- pronation

Question 25

distal radioulnar joint: innervation

Answer 25

• median

- radial nerves

Question 26

where is articular disc on distal end located: and function

Answer 26

• triangular disc
• inferior to head of ulna
• articulates with wrist joint, NOT ulna

Question 27

radiocarpal joint: classification

Answer 27

aka wrist joint

- synovial, condyloid

Question 28

radiocarpal joint: articulating surfaces

Answer 28

• distal end of radius and articular disc

- scaphoid, lunate, triquetrum

Question 29

radiocarpal joint: ligaments

Answer 29

• radial/ulnar (medial/lateral) collateral

- palmar and dorsal radiocarpal

Question 30

radiocarpal joint: movements

Answer 30

• flexion
• extension
• abduction
• adduction
• circumduction

Question 31

radiocarpal joint: innervation

Answer 31

• median
• ulnar
• radial nerves

Question 32

midcarpal joint: classification

Answer 32

synovial, condyloid

Question 33

midcarpal joint: articulating surfaces

Answer 33

proximal row with distal row of carpal bones

Question 34

midcarpal joint: ligaments

Answer 34

• palmar
• dorsal
• interosseous ligaments

Question 35

midcarpal joint: movements

Answer 35

• flexion
• extension
• abduction
• adduction

facilitates movement at wrist (radiocarpal) joint

Question 36

fingers- carpometacarpal joint: classification

Answer 36

• synovial plane

Question 37

thumb- carpometacarpal joint: classification

Answer 37

synovial, saddle

Question 38

thumb- carpometacarpal joint: articulating surfaces

Answer 38

• trapezium

- base of 1st metacarpal

Question 39

thumb- carpometacarpal joint: ligaments

Answer 39

joint capsule

Question 40

thumb- carpometacarpal joint: movements

Answer 40

• flexion/ ext
• abd/ add
• medial/ lateral rotation
• circumduction
• opposition