Wrist & Hand

Question 1

Joints of the wrist

Answer 1

Distal radio-ulnar
Radiocarpal
Carpometacarpal
Metacarpophalangeal
Interphalangeal

Question 2

Distal radio-ulnar synovial classification

Answer 2

pivot or trochoid

Question 3

Radiocarpal Synovial classification

Answer 3

ellipsoidal or condyloid

Question 4

Carpometacarpal synovial classification

Answer 4

1. First (thumb) - sellar or saddle
2. 2nd-5th (index, middle, ring, little) - plane or gliding

Question 5

Metacarpophalangeal synovial classification

Answer 5

ellipsoidal or condyloid

Question 6

Interphalangeal synovial classification

Answer 6

ginglymus or hinge

Question 7

Proximal carpals

Answer 7

Scaphoid, Lunate, Triquetrum, Pisiform

Question 8

Distal carpals

Answer 8

Trapezium, Trapezoid, Capitate, Hamate

Question 9

Transverse carpal ligament function and attachments

Answer 9

function- prevents bowstringing of the tendons of the flexor pollicis longus, flexor
digitorum superficialis & flexor digitorum profundus muscles

attachments- from the pisiform & hook of the hamate to scaphoid & trapezium

Question 10

Collateral ligaments of the metacarpophalangeal joints function and attachments

Answer 10

function- stabilizes metacarpophalangeal joints

attachments- from the head of the metacarpals to base of adjacent proximal phalanx

Question 11

Intrinsic hand muscles

Answer 11

Abductor digiti minimi
Abductor pollicis brevis
Adductor pollicis
Dorsal interossei
Flexor digiti minimi brevis
Flexor pollicis brevis
Lumbricals
Opponens digiti minimi
Opponens pollicis
Palmar interossei

Question 12

Anatomical snuffbox

Answer 12

Boundaries: Extensor retinaculum, Extensor pollicis longus, extensor pollicis brevis
Contents: radial artery, scaphoid

Question 13

Abductor digiti minimi attachments

Answer 13

from… the pisiform
to… the ulnar side of the base of the proximal phalanx of the 5th digit

Question 14

Abductor digiti minimi actions

Answer 14

abducts 5th digit

Question 15

Abductor digiti minimi innervations

Answer 15

PNS: deep branch of the ulnar nerve
CNS: C8-T1

Question 16

Abductor pollicis brevis attachments

Answer 16

From… the transverse carpal ligament
to… the radial side of the base of the proximal phalanx of the thumb and tubercle of trapezium

Question 17

Abductor pollicis brevis actions

Answer 17

abducts the thumb

Question 18

Abductor pollicis brevis innervations

Answer 18

PNS: recurrent branch of the median nerve
CNS: C6-T1

Question 19

Adductor pollicis attachments

Answer 19

from… the capitate & 2nd & 3rd metacarpals (oblique head) & the palmar aspect of the 3rd metacarpal (transverse head)
to… the base of the proximal phalanx of the thumb

Question 20

adductor pollicis actions

Answer 20

adducts the thumb

Question 21

Adductor pollicis innervations

Answer 21

PNS: deep branch of the ulnar nerve
CNS: C8-T1

Question 22

Dorsal interossei attachments

Answer 22

from… the adjacent sides of the metacarpals
to… the proximal phalangeal bases & dorsal digital expansions of digits 2-4

Question 23

Dorsal interossei actions

Answer 23

abducts (MCP), flexes (MCP), extends (IP) of digits 2-4

Question 24

Dorsal interossei innervations

Answer 24

PNS: Deep branch of the ulnar nerve
CNS: C8-T1

Question 25

Flexor digiti minimi brevis attachments

Answer 25

from... the hamate to... the ulnar side of the base of the proximal phalanx of the 5th digit

Question 26

Flexor digiti minimi brevis actions

Answer 26

Flexes MCP of the 5th digit

Question 27

Flexor digiti minimi brevis innervations

Answer 27

PNS: deep branch of the ulnar nerve CNS: C8-T1

Question 28

Flexor pollicis brevis attachments

Answer 28

from... the transverse carpal ligament & trapezium to... the radial side of the base of the proximal phalanx of the thumb; deep head blends with opponens pollicis

Question 29

Flexor pollicis brevis actions

Answer 29

Flexes MCP of thumb

Question 30

Flexor pollicis brevis innervations

Answer 30

PNS: Superficial head: recurrent branch of the median nerve .........Deep head: deep branch of the ulnar nerve CNS: Superficial head: (C6-T1) .........Deep head: (C8-T1)

Question 31

Lumbricals attachments

Answer 31

from... the tendons of the flexor digitorum profundus to... the radial side of the dorsal digital expansions of digits 2-5

Question 32

Lumbricals actions

Answer 32

flexes MCP &extends IP joints of digits 2-5

Question 33

Lumbricals innervations

Answer 33

PNS: deep branch of the ulnar nerve (3rd & 4th (CNS: C8-T1)) & median nerve (1st & 2nd CNS: (C7-T1))

Question 34

Opponens digiti minimi attachments

Answer 34

from... the hook of the hamate to... the ulnar margin of the shaft of the 5th metacarpal

Question 35

Opponens digiti minimi actions

Answer 35

opposition of the 5th digit to the thumb

Question 36

Opponens digiti minimi innervations

Answer 36

PNS: deep branch of the ulnar nerve CNS: C8-T1

Question 37

Opponens pollicis attachments

Answer 37

from... the transverse carpal ligament & trapezium to... the palmar surface of the 1st metacarpal

Question 38

Opponens pollicis actions

Answer 38

opposition of the thumb to the 5th digit

Question 39

Opponens pollicis innervations

Answer 39

PNS: recurrent branch of the median nerve CNS: C6-T1

Question 40

Palmar interossei attachments

Answer 40

from... the palmar aspects of metacarpals 2, 4 & 5 to... the dorsal digital expansions of digits 2, 4, & 5

Question 41

Palmar interossei actions

Answer 41

adducts MCP, flexes MCP, extends IP of digits 2, 4, & 5

Question 42

Palmar interossei innervations

Answer 42

PNS: deep branch of the ulnar nerve CNS: C8-T1