Wrist and hand

Question 1

Articulations inthe wrist and hand

Answer 1

Radius and ulna
Carpal bones
Metacarpals
Phalanges

Question 2

What does the wrist and hand patterns require

Answer 2

High dexterity

Question 3

Joints in the wrist

Answer 3

Radiocarpal
Inferior radioulnar
Midcarpal
Carpometacarpal

Question 4

wrist flexor muscles

Answer 4

Flex dig sup
Flex dig prof
Flex carp uln
Flex carp rad
Palmaris longus
Flexor poll longus

Question 5

Wrist extension

Answer 5

Ext dig
Ext carp rad long/brev
Ext carp uln
Ext indices
Ext dig mini
Ext poll long/brev

Question 6

Ulna deviators

Answer 6

Ext carp- uln
Flex carp uln

Question 7

Radial deviators

Answer 7

Abd poll long
Ext poll long/brev
Ext carp - rad long/brev
Flex carp rad

Question 8

Flexor carpi radialis
O and I

Answer 8

O - medial condyle of humerus
I - base of second and third metacarpal

Question 9

Palmaris longus
O and I

Answer 9

O - medial epicondlye of humerus
I - fascai of palm (palmnar apneurosis) of four fingers

Question 10

Flexor carpi ulnaris
O and I

Answer 10

O - medial epicondyle of humerus; olecranon and posterior surface of ulna

I - pisiform and hamate bone and base of 5th metatacarpal

Question 11

Flexor digitorum superficialis
origin and insertion

Answer 11

O - medial epicondyle of humerus, coronoid process of ulna; shaft of radius

I- by four tendons into middle phalanges of four fingers

Question 12

Flexor pollucis longus
O and I

Answer 12

O - anterior surface of radius and interosseous membrane
I - distal phalanx of thumb

Question 13

Flexor digitorum profundus
O and I

Answer 13

O - coronoid process, anteromedial surface of ulna, and interosseous membrane

I - by four tendons into distal phalanges of second to fifth fingers.

Question 14

Extensor carpi radialis
O and I

Answer 14

O - lateral supracondylar ridge of humerus

I - Base of second metacarpal

Question 15

Extensor carpi radialis brevis
O and I

Answer 15

O - lateral epicondyle of humerus
I - base of thrid metacarpal

Question 16

Extensor digitorum
O and I

Answer 16

O - lateral epicondyle of humerus
I - by four tendons into extensor expansions and distal phalanges of 2nd to 5 th fingers

Question 17

Extensor carpi ulnaris
O and I

Answer 17

O - lateral epicondyle of humerus and posterior border of ulna

I - base of fifth metacarpal

Question 18

Abductor pollucis longus
O and I

Answer 18

O - posterior surface of radius and ulna; interosseous membrane

I - Base of first metacarpal and trapezium

Question 19

Extensor pollucis brevis and longus

Answer 19

O - dorsal shaft and radius and ulna; interosseous membrane

I- base of proximal (brevis) and distal (longus) phalanx of thumb

Question 20

Extensor indicis

Answer 20

O - posterior surface of distal ulna; interosseous membrane

I - extensor expansion of index finger; joins tendon of extensor digitorum

Question 21

Nerves in the wrist

Answer 21

Median
Ulnar nerve
Dorsal digital -
superficial branch of the radial nerve
dorsal branch of the ulnar nerve

Question 22

Thumb joint - 1st carpometacarpal joint

Answer 22

Articulation between 1st metacarpal and trapezium, both surfaces being reciprocally concavo-convex

Synovial saddle joint

Abduction, adduction, extension, flexion, opposition, reposition

Question 23

Carapl tunnel

Answer 23

Attahced to scaphoid and trapezium
Pisiform and hook of hamate

Arch is concave on palmar side

Covered by the flexor retinaculum

9 tendons - flex dig prof, sup and flex poll long

Median nerve

Question 24

Movements
normal range

Answer 24

Flexion and extension - 85
Radial dev - 15
Ulna dev - 45
Pronation - 85
Supination - 90

Question 25

Finger flexors

Answer 25

Superficialis and profundus

Question 26

Fingers extensors

Answer 26

Extensor digitorum