Lab Questions

Front 1

what is cubital fossa?

Back 1

triangular depression on anterior forearm.

Front 2

what passes through cubital fossa?

Back 2

median nerve
brachial artery

Front 3

where does the lateral antebrachial cutaneous nerve come from?

Back 3

musculocutaneous nerve

Front 4

what vessels run w/ the radial nerve?

Back 4

deep brachial artery which comes from brachial artery

Front 5

what bony feature accommodates the radial nerve?

Back 5

radial groove

Front 6

musculocutaneous nerve coruses through the axilla between what muscles?

Back 6

biceps brachii
brachialis

Front 7

musculocutaneous nerve becomes?

Back 7

lateral antebrachial cutaneous nerve

Front 8

what nerve shares communication branch with the median nerve?

Back 8

musculocutaneous

Front 9

does the median nerve innervate the muscles on the brachial region?

Back 9

No, it innervates the muscles on the forearm and hand.

Front 10

ulnar nerve derives from what portion of the BP?

Back 10

median cord,

Front 11

musculocutaneous nerve coruses through the axilla between what muscles?

Back 11

biceps brachii
brachialis

Front 12

musculocutaneous nerve becomes?

Back 12

lateral antebrachial cutaneous nerve

Front 13

what nerve shares communication branch with the median nerve?

Back 13

musculocutaneous

Front 14

does the median nerve innervate the muscles on the brachial region?

Back 14

No, it innervates the muscles on the forearm and hand.

Front 15

ulnar nerve derives from what portion of the BP?

Back 15

median cord,

Front 16

the ulnar nerve course around?

Back 16

medial epicondyle

Front 17

the funny bone is really?

Back 17

the ulnar n

Front 18

continuation of axillary artery in brachium is called?

Back 18

brachial artery

Front 19

What are the border that define the brachial artery?

Back 19

teres major and cubital fossa

Front 20

profunda brachial artery divides into what 2 branches?

Back 20

acending and decending

Front 21

what branch of the profunda brahcial artery supplies the brachium?

Back 21

decending branch

Front 22

What branch accompanies the ulnar nerve?

Back 22

superior ulnar collateral branch

Front 23

where does the branch of the superior ulnar collateral divide and send more branches?

Back 23

sends branches to either side of the medial epicondyle

Front 24

what branch arises close to the medial epicondyle?

Back 24

inferior ulnar collateral

Front 25

where on you body can you palpate the brachial artery pulse?

Back 25

above cubital fossa, medial to biceps brachii and its tendons

Front 26

what nerve provides sensory innervation to the skin of the more distal lateral aspect of the arm?

Back 26

lateral antebrachial cut. n.

Front 27

Of what nerve is the lateral antebrachial cut. n?

Back 27

musculocutaneous

Front 28

The radial nerve courses distally in the arm in company with which artery?

Back 28

deep brachial artery

Front 29

What is the relationship between the radial nerve and the humerus, the radial nerve and the triceps?

Back 29

humerus: sits in the radial groove of biceps
triceps: inserts on the triceps

Front 30

another name for the forearm?

Back 30

antebrachium

Front 31

how are the muscles on the anterior compartment divided?

Back 31

superficial, deep, and intermediate

Front 32

what actions does the anterior compartment have?

Back 32

flexion, pronation, deviation

Front 33

all superficial muscles of forearm originate?
except?

Back 33

medial epicondyle
brachioradialis

Front 34

deep muscles of anterior compartment of forearm originate on what bones?

Back 34

ulna and radius

Front 35

what bones separates the flexor compartment from the extensor?

Back 35

ulna

Front 36

Why can you palpate the posterior border of the ulna?

Back 36

there are no muscles crossing over it

Front 37

what is the anatomical basis which surgical incisions can be made to deep forearm structures through the internervous line?

Back 37

safe incision point to reach deeper parts of the forearm

Front 38

what nerve lies medial to brachioradialis?

Back 38

superficial branch of the radial nerve

Front 39

what name is given to the deep branch of the radial nerve?

Back 39

posterior interosseous n

Front 40

what muscle does the posterior interossesous nerve pierce?

Back 40

supinator, and extensor muscle

Front 41

below the cubital fossa, the radial artery divides into?

Back 41

radial recurrent and radial collateral

Front 42

what arteries take part in the collateral circulation of the elbow

Back 42

radial/ulnar recurrent
inferior ulnar collateral
anterior interosseous

Front 43

what can the radial artery offer an internervous line for surgical access to the deeper parts of the forearm?

Back 43

no nerves cross over the radial a as it reaches the wrist.

Front 44

where else is there a internervous line in the forearm?

Back 44

posterior border of the ulna

Front 45

flexor digitorum superficialis inserts?

Back 45

PIP of 2,3,4,5

Front 46

action of flexor digitorum superficialis?

Back 46

flex the PIP of 2,3,4,5

Front 47

Origin of flexor digitorum superficialis?

Back 47

medial epicondyle

Front 48

how does the origin and insertion of pronator teres relate to its action

Back 48

the radius moves over the ulna. when insertion moves towards the origin it pronates.

Front 49

where do you find the median nerve coursing?

Back 49

between the deep and superficial flexors

Front 50

median n. = source of innervation for what group?

Back 50

flexors

Front 51

exceptions of median nerve rule?

Back 51

1. 1/2 flexor digitorum profundus
2.flexor carpi ulnaris

Front 52

exceptions to ulnar rule?

Back 52

thenar and 1/2 lumbricales

Front 53

what is the largest branch of the ulnar artery?

Back 53

common interosseous artery

Front 54

what does the common interosseous artery divide into?

Back 54

anterior common and posterior

Front 55

interosseous membrane does?

Back 55

divides forearm into anterior and posterior compartments. serves as a site of attachment for muscles of forearm and transfers forces from radius, to ulna, to humerus

Front 56

insertion of tendons of flexor digitorum superficialis?

Back 56

insert on middle phalanx (PIP)

Front 57

what actions does the flexor digitorum superficialis perform?

Back 57

flexor of the PIP on 2,3,4,5

Front 58

what nerve inervate the flexor digitorum superficilias?

Back 58

median nerve

Front 59

what nerve inervate flexor digitorum profundus?

Back 59

1/2 median 1/2 ulnar

Front 60

palmaris longus
Origin
Insertion
Action
Nerve
Blood

Back 60

O: medial epicondyle
I: flexor retinaculum, palmar aponerosis
A: flexion of hand
N: median
B: radial recurrent

Front 61

what is origin of palmaris brevis?

Back 61

flexor retinaculum

Front 62

what aspects of what bone serve as reference point for id of ulnar nerve?

Back 62

between olecranon and medial epicondyle

Front 63

what arteries join for form the superficial palmar arch? what extends from this?

Back 63

deep branch of ulnar artery joins radial artery
digital arteries extend from it

Front 64

below what muscle does the deep palmar arches lie?

Back 64

lumbricales

Front 65

what part of hand is supplied by the superficial branch of the ulnar nerve?

Back 65

5th and medial part of 4th finger

Front 66

what happens to the deep branch of the ulnar nerve?

Back 66

dissapears beneath the hypothenar muscles and follows course parallel to deep palmar arch

Front 67

what muscles of hand supplied by ulnar nerve?

Back 67

palmar group and hypothenar group

Front 68

what two structures does the flexor retinaculum extend?

Back 68

from scaphoid and trapezium to hamate and pisiform forming the carpal tunnel

Front 69

what structures does the retinaculum form?

Back 69

carpal tunnel

Front 70

when removing the retinaculum what structures are revealed?

Back 70

flexor tendons
median n

Front 71

synovial sheath?

Back 71

provides lubrication to allow flexor tendons to move smoothly.

Front 72

tenosynovitis?

Back 72

inflammation of fluid filled synovial sheath

Front 73

how many muscles supplied by median nerve?

Back 73

4
abductor pollicis brevis
flexor pollicis brevis
opponen pollicis
lumbricales

Front 74

how many interossei muscles are there?

Back 74

7

Front 75

what is sometimes called the 4th palmar interosseous muscle?

Back 75

adductor pollicis

Front 76

deep flexors are forearm are what muscles?

Back 76

1. flexor digitorum profundus
2. flexor policis longus
3. pronator quadratus

Front 77

tendons of flexor digitorum profundus and flexor digitorum superficialis both?

Back 77

insert on middle phalanx

Front 78

course of median nerve?

Back 78

goes through carpal tunnel, supplies thenar surface of thumb goes to 2,3

Front 79

brachial artery divides into what two branches?

Back 79

ulnar and radial
radial goes to --> radial recurrent
ulnar --> common interosseous goes to anterior and posterior

Front 80

which end of the ulna is the head?
radius?

Back 80

radius - proximal
ulna - distal

Front 81

the thumb has how many phalanges?

Back 81

2 - proximal and distal

Front 82

the fingers have how many phalanges?

Back 82

3- proximal, middle and distal

Front 83

incision of skin on lateral aspect of the forearm would stimulate what sensory endings innervated by what nerve?

Back 83

lateral antebrachial cutaneous, musculocutaneous

Front 84

what connective tissue spans transversely across carpal groove and helps form carpal tunnel?

Back 84

flexor retinaculum: heavy thickening of antebrachial fascia at the wrist, extends across posterior border of wrist from lateral border of radius to medial border of wrist obliquely

Front 85

anatomical snuff box?

Back 85

tendons of:
extensor pollicis longus
extensor pollicis brevis
abductor pollicis longus

Front 86

extensor retinaculum?

Back 86

thickening antebrachial fascia at wrist, extends across posterior border of wrist obliquely, from lateral border of radius to medial border of ulnar styloid process and traquitral and pisiform bones

Front 87

what artery is in snuff box?

Back 87

radial artery

Front 88

muscles that compose the superficial extensor group of forearm?

Back 88

brachioradilais
pronator teres
FCU
FCR

Front 89

what structure separates the extensors of forearm into lateral and medial groups?

Back 89

muscles above the border furrow

Front 90

what muscle is located in the furrow that separates the extensors into lateral and medial groups?

Back 90

supinator

Front 91

what nerve emerges from the supinator?

Back 91

posterior interosseous n

Front 92

what nerve does the posterior interosseous nerve come from?

Back 92

radial nerve

Front 93

what are other names for the intertendinous connection of the extensor digitorum?

Back 93

extensor hood/expansion

Front 94

over which joints does the extensor expansion cross?

Back 94

all of them in the hand

Front 95

if there is a lesion in the medial nerve in the middle of the forearm what would this effect?

Back 95

if there is lesion before the elbow = affect superficial muscles of the forearm except the flexor carpi ulnaris

if lesion is after the elbow = ape hand