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Important > Upper and Lower Limb Innervations > Flashcards

Upper and Lower Limb Innervations Flashcards

1
Q

Neck Anatomy: Posterior Triangle

A

SCM, trapezium, clavicle

inside: brachial plexus, external jugular, inferior omohyoid, subclavian vein

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2
Q

Anterior triangle

A

midline of neck (trachea), SCM, mandible

Inside: posterior digastric, superior omohyoid, sternothyroid, sternohyoid

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3
Q

Long Thoracic Nerve innervates

A

serrates anterior

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4
Q

suprascapular nerve innervates

A

infraspinatus and supraspinatus

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5
Q

lateral pectoralis nerve innervates

A

pectorals major

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6
Q

upper subscapular innervates

A

subscapularis

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7
Q

thoracodorsal nerve innervates

A

lattismus dorsi

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8
Q

lower sub scapular nerve innervates

A

teres major

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9
Q

axillary nerve innervates

A

deltoid, and teres minor

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10
Q

radial nerve innervates

A

triceps

extensors of wrist and hand (fingers)

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11
Q

median nerve innervates

A

pronators and thenar muscles of the hand

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12
Q

musculocutaneous nerve innervates

A

biceps, brachialis, coracobrachialis, flexors of arm and forearm

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13
Q

ulnar nerve innervates

A

interosseous muscles and hypothenar muscles

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14
Q

Erb Duchenne palsy

A

Injury to superior trunk
“waiters tip syndrome”
-complete or partial paralysis of UE
-bruising, stretching, and tearing of nerves
- nerves affected are suprascapular nerve, axillary nerve and musculocutaneous nerve (pronation due to loss of biceps)

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15
Q

Klumpke palsy

A

-atrophy of the thenar and hypothenar eminences
and atrophy of the interosseous muscles
-sensory deficits of the medial side of the forearm and hand
-disappearance of the radial pulse with moving head forward ipsilateral side

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16
Q

Long head of triceps brachii
Lateral head of triceps brachii
Medial head of triceps brachii

A

radial nerve

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17
Q

Supinator muscle

Brachioradialis muscle

A

deep branch of radial nerve

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18
Q

Skin of posterior forearm

Skin of lateral, posterior hand

A

radial nerve

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19
Q

Saturday night palsy (compression of what nerve against the spiral groove of the humerus)

A

radial nerve

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20
Q

injury: shaft of the humerus

A

radial nerve

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21
Q

Injury: Spiral fracture to mid shaft of the humerus

A

radial nerve

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22
Q

Injury: anterior dislocation of the humerus

A

axillary nerve

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23
Q

Injury: Torn and displaced annular ligament; no pain until elbow is moved

A

Radial head subluxation (nursemaid’s elbow)

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24
Q

sacral genesis causing lower extremity paralysis and urinary incontinence a/w poorly controlled maternal diabetes

A

caudal regression syndrome

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25
Q

flexor capri ulnari

flexor digitorum profundus ( works to flex and adduct the arm)

A

ulnar nerve

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26
Q

adductor pollicis muscle (adduct the thumb), interosseous muscles and 3rd/4th lumbrical muscles ( abduct and adduct the fingers)

A

ulnar nerve

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27
Q

flexed at ICP

extended at MCP

A

ulnar claw

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28
Q

flexors of forearm include: pronator teres, palmaris longs, flexor carpi radials, flexor digitorum superficialis, pronator quadratus and the lateral half of flexor digitorum profundus

A

median nerve

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29
Q

Helps to flex and pronate the wrist

A

median nerve

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30
Q

Injury: cannot abduct the thumb ( will see thenar eminence wasting)

A

ape hand (median nerve)

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31
Q

skin over lateral palm

skin of distal first 3 1/2 digits

A

median nerve

32
Q

_______ nerve entrapment at the carpal tunnel (enclosed by the inelastic _______ventrally and the _______ dorsally

A

median nerve
Flexor retinaculum
carpal bones

Called: carpal tunnel syndrome

33
Q

Injury: can’t flex digits 2 and 3

*** only apparent when they try to make a fist

A

hand of benediction ( median nerve)

34
Q

sensation from the lateral shoulder

A

axillary nerve

35
Q

Injury: fracture of the surgical neck of the humerus

A

axillary nerve

36
Q

artery that runs with axillary nerve

A

posterior circumflex artery

37
Q

Injury: winging of the scapula

A

LTN

38
Q

Injury: wrist drop

A

radial nerve

39
Q

injury: cannot abduct or adduct fingers

A

ulnar nerve

40
Q

injury to carpal tunnel

A

median nerve

41
Q

Innervates the posts muscle and iliacus (together makes the ilapsoas muscle)

A

femoral nerve

42
Q

pectineus and sartorius

A

femoral nerve

43
Q

hip flexors (pectineus, sartorius, and ilapsoas)

A

femoral nerve

44
Q

knee extensors (quadriceps muscles - vastus lateralis, vastus medialis, and rectus femoris

A

femoral nerve

45
Q

Injury: decreased sensation to the anterior thigh and medial leg

A

femoral nerve

46
Q

injury to pelvis affects what nerve?

A

femoral nerve

47
Q

adductors of the hip ( adductor brevis, adductor longs, and adductor magnus) and knee flexor (gracilis muscle)

A

obturator nerve

48
Q

injury: anterior hip dislocation

A

obturator nerve

49
Q

sensation of medial thigh

A

obturator nerve

50
Q

innervates tensor fasciae latae, gluteus medius, and gluteus minimus

A

superior gluteal nerve

51
Q

innervates gluteus maximus

A

inferior gluteal nerve

52
Q

injury due to posterior hip dislocation ; also can be affected in polio

A

superior gluteal nerve

53
Q

trendelenburg gait

A

superior gluteal nerve

54
Q

hip extension and lateral rotation of the thigh

A

inferior gluteal nerve

55
Q

biceps femoris muscle, semitendinosis, semimembranosus muscle, hamstring portion of adductor magnus

A

tibial branch of sciatic nerve

56
Q

hip extension and knee flexion

A

tibial branch of the sciatic nerve

57
Q

posterior sensation to the thigh, gluteal region, and lower leg except the medial side

A

sciatic nerve

58
Q

plantaris, popliteus, soleus, gastrocenemius muscles, flexor digitorum longus tendon, flexor hallicus longus tendon, tibilalis posterior tendon ( inversion of the foot)

A

tibial nerve

59
Q

Knee trauma injury

A

tibial nerve

60
Q

sensation to the sole of the foot

A

tibial nerve

61
Q

fibular neck fracture

A

common peroneal nerve ( deep and superficial peroneal nerves)

62
Q

Peroneus Tertius muscle ( foot eversion),tibilalis anterior, extensor hallicus longus, and extensor digitorum longus ( all 3 work to dorsiflex the foot)

A

deep peroneal nerve

63
Q

lateral side of the knee injury

A

deep peroneal nerve

64
Q

peroneus longus and peroneus brevis muscles

A

superficial peroneal nerve

65
Q

injury: disc herniation

A

sciatic nerve

66
Q

injury: disc herniation
Sensation: lower leg

A

sciatic nerve

67
Q

injury: anterior hip dislocation
Allows thigh adduction
Sensation: medial thigh

A

obturator nerve

68
Q

injury: pelvic fracture
sensation: anterior thigh
allows: hip flexion, knee extension

A

femoral nerve

69
Q

Injury: posterior hip dislocation

allows hip extension

A

inferior gluteal nerve

70
Q

sensation:
Injury: lateral knee injury
injury: foot drop

A

Deep peroneal nerve

71
Q

injury: knee injury

allows plantar flexion

A

Tibial nerve

72
Q

T10

A

belly button

73
Q

S2-S3

A

genitalia

74
Q

S5

A

Rectum

75
Q

L5

A

Heel

76
Q

Arterial Supply of Lower Limb

A

Aorta–> common iliac ( bifurcates into external iliac and internal iliac)–>e. iliac–> femoral artery and deep femoral –> femoral goes to (behind knee) popliteal artery and gives rise to the posterior tibial (posterior compartment) –> fibular (peroneal) artery and on the anterior side (anterior tibial (anterior compartment) –> dorsalis pedius

Important (6 decks)

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