posterior compartment of forearm

Question 1

radial nerve supply, which muscle ?

Answer 1

extensor muscles

Question 2

extensor muscles tendons are stabilized by?

Answer 2

extensor retinaculum at the wrist

Question 3

extensor tendon compartment of the wrist

Answer 3

six tunnels
synovial sheath

Question 4

extensor tendon compartment are transmited by //////// from /////to/////

Answer 4

six tunnels from the forearm into the hand

Question 5

each tunnel is lined by what

Answer 5

synovial sheath

Question 6

superficial compartment of extensor muscles

Answer 6

brachioradialis m
extensor carpi radialis longus
extensor carpi radialis brevis
extensor carpi ulnaris m
anconeus m
extensor digitorum m
extensor digit minimi

Question 7

deep compartment

Answer 7

abductor pollicis longus
extensor pollicis longus
extensor pollicis brevis
extensor indicis m
supinator m

Question 8

Brachioradialis muscle o
i
a
n

Answer 8

superaepicondylar ridge of humerus
styloid process of radius
flexes at the elbow joint semipronaton
radial nerve

Question 9

extensor carpi radialis longus o
i
a
n

Answer 9

suprepicondylar ridge of humers
base of 2 metacarpal bone
exteds and abducts wrist joint
radial nerve

Question 10

Extensor carpi radialis brevis O
I
A
N

Answer 10

lateral epicondyle of humerus
base of 3rd metacarpal bone
extends and abducts wrist joint
radial nerve deep

Question 11

Extensor carpi ulnaris O
I
A
N

Answer 11

lateral epicodyle of humerus
base of 5th metacarpal bone
extends and adducts
radial nerve

Question 12

adductin ulnar devation of hand ?

Answer 12

hammering ;throwing golfing and swinging abaseball bat

Question 13

anconeus O
I
A
N

Answer 13

latreal epicondyle of humerus
lateral surface of olecranon process of ulna
extends at elbow joint
radial nerve

Question 14

extensor digitorum O
I
A
N

Answer 14

lateral epicondyle of humerus
4 dphalnges middle and distal

extends metacarpophalneal joint
extends the wrist joint
opposes flexor m
opening of the hand

radial nerve

Question 15

extensor digiti minimi O
I
A
N

Answer 15

lateral epicondyle of humerus
extensor expansion of little finger
extends the wrist joint
extends mp joint
little finger can extend independently
radial n

Question 16

tendon covers the dorsal surface of head of metacarpal and proximal phalanx form

Answer 16

dorsal digital expansion

Question 17

base expansion forms ?

Answer 17

a hood over metacarpal head

Question 18

apex expansion at the distal end of proximal phalanx trifucates into ?

Answer 18

median and two lateral part

Question 19

abductor policis longus O
I
A
N

Answer 19

interosseus memmbrane
base of 1st metacarpal bone
abduct and extends thumb and slightly abducts the wrist

radial nerve

Question 20

extensor policis brevis O
I
A
N

Answer 20

interoseeus membrane
base of proximal phalanx of thumb

extends MP
extends at wrist joint

radial nerve

Question 21

extensor policis longus ?

Answer 21

interoseus membrane
extends distal phalanx of thumb
extends wrist joint

radial n

Question 22

triangular depression on the lateral aspect of thumb of the hand ?

Answer 22

snuffox

Question 23

superficial branch of radial nerve innervates ?

Answer 23

lateral 3 and half digits except the tips

Question 24

extensor indicis O
I
A
N

Answer 24

lower part of the posterior surface of ulna

extensor expansion of index

extends mc joint of index
extension wrist joint

radial nerve

Question 25

action of supinator muscle ?

Answer 25

radial nerve

supination of forearm

Question 26

radial tunnel syndrome

Answer 26

it is the common site of compression of the radial nerve motor branch

posterior interosseus nerve may be entrapped at the arcade of frihse
it get worst by supination and pronation

Question 27

what psses above the extansor retinaculum

Answer 27

superficial branch of radial nerve
cephalic vein
basilic vein