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111 notecards = 28 pages (4 cards per page)

Viewing:

Anatomy Block III- Forearm

front 1

what is the humerus an attachment for

back 1

some forearm muscles

front 2

what are two bony landmarks on the ulna

back 2

styloid process

interosseus border

front 3

what are some bony landmarks on the radius

back 3

head
styloid process
interosseus border

front 4

is the head of the radius or ulna more distal

back 4

radius

front 5

how many carpals are there

back 5

8

front 6

how many phalanges are there

back 6

14, 2 for thumb, 3 for remaining digits

front 7

what does the interosseus membrane divide

back 7

flexor (anterior) compartment from extensor (posterio) muscles

front 8

why is the interosseus of the upper limb important

back 8

pronation/supination

front 9

what fascia is in the forearm

back 9

deep fascia of the forearm

front 10

what is the deep fascia of the forearm continuous with

back 10

brachial fascia

front 11

what is another name for the deep fascia of the forearm

back 11

antebrachial fascia

front 12

what forms compartmenst along with the interosseous membrane

back 12

deep fascia of the arm

front 13

what are two thickenings in the deep fascia of the forearm

back 13

flexor retinaculum
extensor retinaculum

front 14

where is the flexor retinaculum

back 14

anterior aspect of forearm

front 15

what flexor tendons don't get covered

back 15

palmaris longus

front 16

where is the extensor retinaculum

back 16

posterior aspect of forearm

front 17

what is the point of of the retinaculum

back 17

prevents bowstringing of tendons agaisnt skin and fascia themselves, keeps their advantage

front 18

back 18

a. brachioradialis
b. pronator teres
c. flexor carpi radialis
d. palmaris longus
e. flexor carpi ulnaris

front 19

what is the action of the anterior forearm compartment

back 19

hand/wrist flexors and forearm pronators

front 20

what muscles are part of the anterior superficial layer

back 20

pronator teres
flexor carpi radialis
palmaris longus
flexor carpi ulnaris

front 21

where do all of the superficial muscles of the anterior superficial layer originate from

back 21

medial epicondyle off tendon called flexor tendon

front 22

what innervates pronator teres

back 22

median nerve

front 23

what innervates flexor carpi radialis

back 23

median nerve

front 24

what innervates palmaris longus

back 24

median nerve

front 25

what innervates flexor carpi ulnaris

back 25

ulnar nerve

front 26

what innervates flexor digitorum superficialis

back 26

median nerve

front 27

what innervates flexor digotorum profundus on digits 2-3

back 27

median nerve

front 28

what innervates flexor digitorum profundus on digits 4-5

back 28

ulnar nerve

front 29

what innervates flexor pollicis longus

back 29

anterior interosseous nerve

front 30

what innervates pronator quadratus

back 30

anterior interosseous nerve

front 31

what is innervated by the median nerve in the anterior forearm

back 31

pronator teres
flexor carpi radialis
palmaris longus
flexor digitorum superficialis

front 32

what is innervated by the ulnar nerve in the anterior forearm

back 32

flexor carpi ulnaris
flexor digitorum profundus 4-5

front 33

what is innervated by the anterior interosseous nerve in the anterior forearm

back 33

flexor pollicis longus
pronator quadratus

front 34

what is the action of the pronator teres

back 34

flex forearm, no hand/wrist flexion (only one that does not cross wrist), PRONATION mainly

front 35

what is the action of the flexor carpi radialis

back 35

flex forearm, hand wrist flexion, forearm pronator and radial deviation (hand abduction)

front 36

what is the action of the palmaris longus

back 36

wrist flexion only

front 37

what is interesting about the palmaris longus

back 37

missing in a fair number of people

front 38

what does the palmaris longus have and what does that thing attach to

back 38

long central tendon, attaches to palmar aponeuroses

front 39

back 39

a. supniator
b. flexor digitorum superficialis

front 40

back 40

a. supinator
b. flexor digitorum profundus
c. flexor pollicis longus
d. pronator quadratus

front 41

what innervates the brachioradialis

back 41

radial nerve

front 42

what innervates the extensor carpi radialis brevis

back 42

deep branch of radial nerve

front 43

what innervates the extensor carpi radialis longus

back 43

radial nerve

front 44

what innervates the extensor digitorum

back 44

posteiror interosseous nerve

front 45

what innervates the extensor digiti minimi

back 45

posteiror interosseous nerve

front 46

what innervates the extensor carpi ulnaris

back 46

posterior interosseous nerve

front 47

what innervates the supinator

back 47

deep branch of radial nerve

front 48

what innervates the abductor pollicis longus

back 48

posterior interosseous nerve

front 49

what innervates the extensor pollicis longus

back 49

posterior interosseous nerve

front 50

what innervates the extensor pollicis brevis

back 50

posterior interosseous nerve

front 51

what innervates the extensor indicis

back 51

posterior interosseous nerve

front 52

what is in the intermediate layer of anterior muscles

back 52

flexor digitorum superficialis

front 53

where does the flexor digitorum superficialis start and end

back 53

medial epicondyle and radius to fingers

front 54

what is the action of the flexor digitorum superficialis

back 54

flex wrist and fingers PIP joint 2-5

front 55

what muscles are in the deep layer of the anterior forearm compartment

back 55

flexor digitorum profundus
flexor pollicis longus
pronator quadratus

front 56

what do the flexor digitorum profundus go to

back 56

go to distal phalanges and flex DIP joint 4-5

front 57

what do flexor pollicis longus go to

back 57

more latera, flexes thumb joint

front 58

what does the pronator quadratus not do

back 58

hand/wrist flexion

front 59

what does the pronator quadratus do

back 59

helps pronation

front 60

what nerves are in the anterior compartment

back 60

median nerve
ulnar nerve

front 61

back 61

a. median nerve
b. ulnar nerve
c. ulnar artery
d. common interosseous artery
e. median nerve
f. radial artery
g. anterior interosseous artery and nerve

front 62

what vessels are in the anterior compartment

back 62

ulnar artery
radial artery
anterior interosseous artery

front 63

what does the median nerve innervate in the anterior forearm

back 63

all forearm muscles except medial 1/2 flexor digitorum profundus and flexor carpi ulnaris

(and its branch the anterior interosseous nerve innervates the flexor pollis longus and the pronator quadratus)

front 64

what does the median nerve give off

back 64

anterior interosseous nerve

front 65

where does the anterior interosseous nerve run

back 65

along top of anterior surface of interosseous membrane

front 66

what does the anterior interosseous nerve innervate

back 66

flexor pollicis longus
pronator quadratus

front 67

what does the ulnar nerve innervate

back 67

medial 1/2 of flexor digitorum profundus and flexor carpi ulnaris

front 68

where does the ulnar nerve go

back 68

intrinsic hand on medial side

front 69

where does the ulnar artery run

back 69

along medial side

front 70

where does the radial artery run

back 70

along lateral side, more superficial and better to get pulse from

front 71

where does the anterior interosseous artery run

back 71

from common interosseous artery from ulnar artery

front 72

what is the shared action of the posterior forearm compartment

back 72

wrist extensors and forearm supinators

front 73

what muscles are in the superficial layer of the posterior forearm muscles

back 73

brachioradialis
extensor carpi radialis longus
extensor carpi radialis brevis
extensor digitorum
extensor digiti minimi
extensor carpi ulnaris

front 74

back 74

a. brachioradialis
b. extensor carpi radialis longus
c. extensor carpi radialis brevis
d. extensor digitorum
e. extensor carpi ulnaris

front 75

back 75

a. supinator
b. abductor pollicis longus
c. extensor pollicis brevis
d. extensor indicis
e. extensor pollicis longus

front 76

what is the action of brachioradialis

back 76

weak flexion of forearm, holding it at 90 degrees

front 77

what innervates the brachioradialis

back 77

radial nerve

front 78

what does the extensor carpi radialis longus do

back 78

helps extend wrist, goes with flexor carpi radialis to get wrist abduction (radial deviation)

front 79

what is the role of extensor digitorum

back 79

gives rise to 4 tendons on all 4 finguers

front 80

what does the extensor digiti minimi do

back 80

pinky extension

front 81

where does the extensor carpi ulnaris go

back 81

metacarpal bones

front 82

what does the extensor carpi ulnaris do

back 82

wrist extension and wrist adduction with flexor carpi ulnaris

front 83

what are the deep posterior forearm muscles

back 83

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

front 84

what does the supinator do

back 84

only supination of the forearm with help from biceps brachii

front 85

what does the supinator wrap around

back 85

radius, it is deep

front 86

what is the action of abductor pollicis longus

back 86

thumb abduction

front 87

where does extensor pollicis longus run

back 87

off ulna, more medial on back of arm

front 88

where does extensor pollicis brevis go

back 88

more distally than extensor pollicis longus

front 89

what does extensor indicis do

back 89

extends index finger to a point

front 90

back 90

a. radial nerve
b. deep branch of radial nerve

front 91

what are the nerves in the posterior compartment

back 91

radial nerve

front 92

what are the vessels in the psoterior compartment

back 92

posterior interosseous artery

distal portion of anterior interosseous artery

front 93

back 93

a. supinator
b. posterior interosseous nerve
c. posterior interosseous artery

front 94

what does the radial nerve innervate (muscles)

back 94

brachioradialis and extensor carpi radialis longsu

front 95

what are teh branches of the radial nerve

back 95

deep branch

posterior interosseous nerve

front 96

what does the deep branch of the radial nerve innervate

back 96

supinator and extensor carpi radialis brevis

front 97

where is the posterior interosseous nerve off of

back 97

deep branch of radial nerve, innervates the remainder of the posterior compartment muscles

front 98

where is the posterior interosseous artery from

back 98

common interosseus artery in anterior compartment

front 99

what side of the forearm is the carpal tunnel on

back 99

atnerior side

front 100

what is within the carpal tunnel

back 100

tendons of flexor pollicis longus and flexor digitorum superficialis and profundus

median nerve

synovial sheaths around flexor tendons

front 101

what is carpal tunnel syndrome

back 101

overuse leading to inflammatin and swelling in a small area, can decrease space and impingue on medial nerve

front 102

where are the differentces in sensation typically with carpal tunnel syndrome

back 102

lateral 3 fingures, some thumb, but not always palm of hand

front 103

what can start wasting due to median nerve compression

back 103

intrinsic muscle of thumb

front 104

what is Phalen's test

back 104

compresses carpal tunnel space and can exacerbate things and cause issues

front 105

what can help carpal tunnel syndrome

back 105

exercising, bracing, surgery better on the medial side

front 106

what is the anatomical snuff box

back 106

triangular depression on lateral side of wrist

front 107

back 107

a. extensor pollicis longus
b. extensor pollicis brevis
c. radial artery

front 108

what forms the anatomical snuff box

back 108

tendons of abductor pollicis longus, extensor pollicis brevis, and extensor pollicis longus

front 109

back 109

a. medial cutaneous nerve of forearm
b. posterior cutaneous nerve of forearm
c. lateral cutaenous nerve of forearm

front 110

back 110

a. posterior cutaneous nerve of forearm
b. lateral cutaneous nerve of forearm

front 111

what does the cutaneous innervation of the forearm

back 111

lateral cutaneous nerve of forearm
medial cutaneous nerve of forearm
posterior cutaneous nerve of forearm