Wrist Hand and Fingers

Question 0

Number of joints in hands and fingers

Answer 0

20

Question 1

Number of bones in hands and fingers

Answer 1

27

Question 2

Number of muscles in hands and fingers

Answer 2

33

Question 3

Proximal row

Answer 3

Scaphoid
Lunate
Triquetrum
Pisiform

Question 4

Distal row

Answer 4

Trapezium
Trapezoid
Capitate(largest)
Hamate(horn process)

Question 5

Fractures to bones of this row most frequent

Answer 5

Proximal

Question 6

Condyloid joint that consists of radius scaphoid and lunate

Answer 6

Radiocarpal joint

Question 7

What kind of joint is first digit/pollicis?(carpal/metacarpal)

Answer 7

Saddle

Question 8

Flexors of the wrist

Answer 8

Flexor carpi radialis
Palmaris longus
Flexor carpi ulnaris

Question 9

Extensors of the wrist

Answer 9

Extensor carpi radialis longus
Extensor carpi radialis brevis
Extensor carpi radialis ulnaris

Question 10

Flexor carpi radialis OIA

Answer 10

O: Med epicondyle humerus
I: Base of 2nd metacarpal
A: Flexion & Radial deviation
check for pulse

Question 11

Palmaris longus OIA

Answer 11

O: Medial epicondyle humerus
I: Palmar Aponeurosis
A: Flexion

Question 12

Flexor carpi ulnaris OIA

Answer 12

O: medial epicondyle, olecrenon process(ulna)
I: Pisiform
A: Flexion, ulnar deviation

Question 13

Extensor carpi radialis longus OIA

Answer 13

O: Lateral epicondyle 
I: Dorsal surface 2nd metacarpal 
A: Extension and radial deviation 
antagonist to flexion 
synergistic to rad dev

Question 14

Extensor carpi radialis brevis OIA

Answer 14

O: Lateral epicondyle of humerus
I: Dorsal surface of 3rd metacarpal
A: Extension

Question 15

Extensor carpi ulnaris OIA

Answer 15

O: lateral epicondyle
I: base of 5th metacarpal
A: Extension & ulnar dev

Question 16

Extrinsic finger muscle flexors

Answer 16

Flexor digitorum superficialis

Flexor digitorum profundus

Question 17

Extrinsic finger muscle extensor(s)

Answer 17

Extensor digitorum

Question 18

Flexor digitorum superficial(2-5) OIA

Answer 18

O: Medial epicondyle & medial border of radius, splits into 4 tendons, passes through carpal tunnel, splits again…
I: Each side of the middle phalanx
A: Flexes wrist, MP, PIP

Question 19

Flexor digitorum profundus OIA

Answer 19

O: surface of the ulna splits into 4 tendons, passes through carpal tunnel…
I: Distal phalanges
A: Flexes wrist, MP, PIP, DIP

Question 20

Extensor digitorum OIA

Answer 20

O: lateral epicondyle
splits into 4 tendons
I: extensor mechanism
A: extends wrist, MP, PIP, DIP

Question 21

Extensor Indicies OIA

Answer 21

O: Ulna
I: Extensor digitorum tendon
A: Extends MP PIP DIP

Question 22

Extensor digiti minimum

Answer 22

extends fifth digit

Question 23

Intrinsic muscles (2-4)

Answer 23

lumbricals
dorsal and palmar interossi
hyperthenar muscles

Question 24

Name means earth worms

Answer 24

Lumbricals

Question 25

What muscles cause forearm pronation and supination?

Answer 25

Pronation: Pronator teres, pronator quadratus
Supination: biceps brachii, brachioradialis, supinator

Question 26

Workhorse of elbow flexors

Answer 26

Brachialis

Question 27

Nursemaid’s elbow

Answer 27

Dislocation of head of radius slipping out from the anular ligament of radius.

Question 28

Anatomical snuffbox tendons

Answer 28

extensor pollicis brevis, abductor pollicis longus