forearm muscles (posterior and lateral)

Question 1

brachioradialis origiin

Answer 1

proximal 2/3 of the lateral supracondyler ridges of the humerus

Question 2

insertion of brachioradialis

Answer 2

lateral surface of he distal end of the radius

Question 3

innervation of brachioradialis

Answer 3

radial nerve

Question 4

action of brachioradialis

Answer 4

flexes the forearm in midprone position

Question 5

origin of extensor carpi radilias longus

Answer 5

lateral supracondyler ridge of the humerus

Question 6

insertion of extensor carpi radialis longus

Answer 6

base of the 2nd metacarpal

Question 7

nerve supply of extenosr carpi radialis longus

Answer 7

radial nerve

Question 8

action of extensor carpi radialis longus

Answer 8

extends and abducts the hand at teh wrist joint

Question 9

origin of extensor carpi radilais brevis

Answer 9

lateral epicondyle of teh humerus

Question 10

insterion of extensor carpi radialis brevis

Answer 10

base of the 3rd metacrapal or between teh 2nd and the 3rd

Question 11

action of extensor carpi radilais brevis

Answer 11

extends and abducts the hand at the wrist joint

Question 12

nerve supply of extensor carpi radilais brevis

Answer 12

deep branch of radial nerve

Question 13

extensor digitorum origin

Answer 13

lateral epicondyle of the humerus

Question 14

extensor digitirum insertion

Answer 14

extensor expansion to the middle four digits

Question 15

action of extnsor digitorum

Answer 15

extends hand at the wrist joint
extends tthe medial four fingers and metacarpophalangeal joints

Question 16

nerve supply of extensor digitorum

Answer 16

deep branch of radial nerve

Question 17

extensor digiti minimi origin

Answer 17

lateral epicondyle of the humerus

Question 18

extensor digiti minimi insertion

Answer 18

extensor expansion of the 5th digit

Question 19

nerve suppply of extensor digiti minimi

Answer 19

deep branch of radial nerve

Question 20

nerve suppply of extensor digiti minimi

Answer 20

deep branch of radial nerve

Question 21

action of extensor digiti minimi

Answer 21

extends the 5th digit at metcarpophalangeal and interphalangeal joints

Question 22

extensor carpi ulnaris origin

Answer 22

lateral epicondyle of teh humerus ans posterior border of ulna

Question 23

extensor carpi ulnaris insertion

Answer 23

base of the 5th metacarpal

Question 24

extensor carpi ulnaris nerve supplu

Answer 24

deep branch of radial nerve

Question 25

extensor carpi ulnaris action

Answer 25

extends and aducts the hand at teh wrist joint

Question 26

abductor pollicis longus origin

Answer 26

posterior surface of ulna , radius and interosseuos membrane

Question 27

abductor pollicis longus insertion

Answer 27

base of he 1st metacrpal

Question 28

action of abductor pollicis longus

Answer 28

abduction of the thumb and extends it at carpometacpal jonts

Question 29

innervation abductor pollicis longus

Answer 29

deep branch of radial nerve

Question 30

extensor pollicis brevis origin

Answer 30

posterior surface of radius and interosseous membrane

Question 31

extensor polllicis brevis insertion

Answer 31

base of the proximal phalanx of the thumb

Question 32

action of extensor pollicis brevis

Answer 32

extends the proximal phalanx at carpometacrapal joints

Question 33

innervation of extensor polllicis brevis

Answer 33

deeo branch of radial nerve

Question 34

extensor pollicis longus origin

Answer 34

posterior surface of ulna and interosseous membrane

Question 35

ectensor poliicis longus insertion

Answer 35

base of distal phalanx of the thumb

Question 36

action of extensor pollicis longus

Answer 36

extends distal phalanx of the thumb at carpometacarpal joints and interphalangeal joints

Question 37

innervation of extensor pollicis longu s

Answer 37

deep branch of radial nerve

Question 38

extensor indics origin

Answer 38

posterior surface of ulna and interosseous membrane

Question 39

extensor indics isnertion

Answer 39

extensor expansion of the 2nd digit

Question 40

action of extensor indics

Answer 40

extends teh second deigita nd helps extend the hand

Question 41

innervation of extensor indics

Answer 41

deep branch of radial nerev

Question 42

superior group muscles are

Answer 42

anconeous and supinator

Question 43

superior group innervation

Answer 43

radial nerve

Question 44

anconeous is superficial or deep to supinator?

Answer 44

superficial

Question 45

supinator is superficial or deep to anconeous?

Answer 45

deep

Question 46

anconeous origin

Answer 46

posterior sur face of the shaft of the humerus and lateral epicondyle

Question 47

anconeous insertion

Answer 47

olecarnon process

Question 48

action of anconeus

Answer 48

it extends teharm at the elbow joint

Question 49

supiinator action

Answer 49

it suoinates teh forearm at radioulnar joints

Question 50

supinator origin

Answer 50

lateral epicondyel of teh humerus and supinator crest of ulna

Question 51

supinator insertion

Answer 51

midpoint of teh lateral side of the shaft of radius

Question 52

what is the flexor retinaculum

Answer 52

its is a thickening of deep fascia that ataches teh tendons of the long felxors in position with the wrist

Question 53

what is the flexor retinaculum

Answer 53

its is a thickening of deep fascia that ataches teh tendons of the long felxors in position with the wrist

Question 54

it is attached mediall by

Answer 54

pisiforma sn hook of hamate

Question 55

it is attached laterally by

Answer 55

scaphoid and trapezium

Question 56

what tendosna re attached to ots anterior surface? flexor retinaculum

Answer 56

flexor carpi ulnars and palamris longus

Question 57

teh anatomyof the carpal tunnel

Answer 57

the anterior concave of the carpal bones forma bony gutter and the flexor retinaculum converts itinto a tunnel

Question 58

contens of the carpal tunnel

Answer 58

median nerve the 4 tendons of the flexordigitorum superficials and profundus andthe flexor pollicis longus tendon

Question 59

structures that pass superficially to the flexor retinaculum

Answer 59

ulnar nerve ulnar arteries flexor carpi ulnaris tendon palmar cutaneous branch of ulnar nerve palamar cutaneous branch of median nerve palamaris longus tendon (if present)

Question 60

median nerve journey in the hand

Answer 60

it immediatly divides into lateral and medial branches the muscular branch supplies teh thernar eminence muscle and the first two lumbricals the cutaneous nerve the palmar aspect pf the lateral 3 and 1/2 fingers and dorsally the distal half of teh all of those fingers

Question 61

carapal tunnel syndrome

Answer 61

it is caused by he median nerve being compressed as it passes through the carpal tunnel behind the flexor retinaculum

Question 62

what hand is usually affected first with carpal tunel syndome

Answer 62

the dominant one

Question 63

sypmtoms of carpal tunnel syndrome

Answer 63

pain ,paratheia, numbness of the thumb, index, mddle and the medial side of the ring finger . it is worse at night and at gripping objects

Question 63

sypmtoms of carpal tunnel syndrome

Answer 63

pain ,paratheia, numbness of the thumb, index, mddle and the medial side of the ring finger . it is worse at night and at gripping objects

Question 64

why does no parathesia occur with the thenar eminence muscle

Answer 64

the palmar cutaneous branch of teh median nerve supplies it and it passes superficially to the flexor retinaculum