Unit 4 Wrist And Hand Bones, Landmarks, Carpal Tunnel

Front 1

peanut shaped bone, most commonly fractured carpal, floor of the anatomical snuffbox

Back 1

scaphoid

Front 2

carpal is the most frequently dislocated

Back 2

lunate

Front 3

knobby carpal; located on the palmar surface anterior to the triquetrum

Back 3

pisiform

Front 4

carpal articulates with the first metacarpal

Back 4

trapezium (rhymes with “thumb”)

Front 5

articulates with the second metacarpal

Back 5

trapezoid

Front 6

goniometry landmark for wrist flexion & extension

Back 6

triquetrum

Front 7

articulates with the fourth and fifth metacarpals; contains a hook or small protuberance on palmar surface

Back 7

hamate

Front 8

number of bones in wrist

Back 8

10

Front 9

proximal bones of the wrist from medial to lateral

Back 9

pisiform, triquetrum, lunate, scaphoid

Front 10

distal bones of the wrist from lateral to medial

Back 10

trapezium, trapezoid, capitate, hamate

Front 11

number of bones in hand

Back 11

5 metacarpals, 5 proximal phalanges, 4 middle phalanges, 5 distal phalanges

Front 12

1st finger AKA

Back 12

thumb

Front 13

2nd finger AKA

Back 13

pointer

Front 14

3rd finger AKA

Back 14

middle finger

Front 15

4th finger AKA

Back 15

ring finger

Front 16

5th finger AKA

Back 16

pinky or little finger

Front 17

carpal tunnel is formed by

Back 17

flexor retinaculum, carpal bones

Front 18

flexor retinaculum is formed by

Back 18

transverse and palmar carpal ligaments

Front 19

flexor retinaculum is composed of

Back 19

thick, fibrous, connective tissue

Front 20

transverse carpal ligament runs from

Back 20

scaphoid and trapezium to the triquetrum, pisiform, and hamate

Front 21

palmar carpal ligament runs from

Back 21

radial styloid to the ulnar styloid

Front 22

four different structures that pass through the carpal tunnel

Back 22

four tendons of the flexor digitorum superficialis, four tendons of flexor digitorum profundus, flexor pollicis longus, median nerve

Front 23

carpal tunnel syndrome cause

Back 23

impingement of the four structures that run through the carpal tunnel (particularly the median nerve)

Front 24

relieve carpal tunnel syndrome

Back 24

carpal tunnel release to relieve surgically the pressure on these structures

Front 25

extensor retinaculum

Back 25

stabilizes the posterior wrist and thumb muscles; located from ulnar styloid to the radius.