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DPT Anatomy Test 2 > Leg > Flashcards

Leg Flashcards

1
Q

O of extensor hallucis longus

A

middle part of ant. surface of fibula and interosseus membrane

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2
Q

O of Extensor Digitorum longus

A

lateral condyle of tibia & interosseus membrane

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3
Q

O of peroneus (fibular) tertius

A
  • inferior 1/3 of ant. surface of fibula

- interosseus membrane

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4
Q

I of Tibalis anterior

A

medial and inferior surfaces of medial cuneiform and 1st metatarsal

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5
Q

O of tibialis anterior

A

lateral condyle & superior 1/2 of lateral tibia

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6
Q

I for Extensor Hallucis longus

A

dorsal aspect of base of distal phananx of hallux

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7
Q

I for extensor Digitorum longus

A

middle and distal phalanges of lateral 4 digits

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8
Q

I of peroneus tertius

A

dorsum of base of 5th metatarsal

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9
Q

a of tibialis anterior

A

dorsiflex and invert foot

supports the medial longitudinal arch

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10
Q

a of extensor hallucis longus

A

extends hallux and dorsiflexes foot

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11
Q

a of extensor digitorum longus

A

extends lateral 4 digits and dorsiflexes foot

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12
Q

a of peroneus tertius

A

dorsiflex foot and aides in eversion

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13
Q

Innervation of all four anterior compartment muscles (tibialis anterior, extensor hallucis longus, extensor digitorum longus, peroneus tertius)

A

Deep fibular nerve (L4-L5)

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14
Q

extension of the hallux is used to indicate the integrity of ____spinal segment

A

L5

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15
Q

_____ of the hallux is used to indicate the integrity of L5 spinal segment

A

extension

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16
Q

O peroneus longus

A

head & sup. 2/3 of lateral surface of fibula

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17
Q

O peroneus brevis

A

Inferior 2/3 of lateral surface of fibula

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18
Q

i of peroneus longus

A

base of first metatarsal & medial cuneiform

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19
Q

i of peroneus brevis

A

dorsal surface of tuberosity on lateral side of base of 5th metatarsal

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20
Q

a of peroneus longus

A

everts foot & weakly plantarflexes

tendon supports all the arches (transverse and both medial and lateral longitudinal)

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21
Q

a of peroneus brevis

A

everts foot and weakly plantarflexes

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22
Q

Innervation of peroneus longus and brevis

A

superficial fibular nerve (L5-S2)

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23
Q

O of gastrocnemius lateral head

A

lateral aspect of lateral condyle of femur

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24
Q

O of gastrocnemius medial head

A

popliteal surface of femur, sup. to medial condyle

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25
Q

O of soleus

A

post aspect of head of fibula
sup 1/4 of fibula
soleal line
medial border of tibia

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26
Q

O of plantaris

A

inferior end of lateral supracondylar line of femur

oblique popliteal ligament

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27
Q

I of all superficial posterior compartment muscles (gastrocnemius, soleus, plantaris)

A

posterior surface of calcaneus via tendo calcaneus

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28
Q

Difference in action of gastrocnemius and soleus

A

They both plantar flex foot, raises heel during walking

The gastrocnemius also flexes knee joint

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29
Q

innervation of superficial posterior compartment muscles (gastrocnemius, soleus, plantaris)

A

tibial nerve (S1-S2)

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30
Q

Action of plantaris

A

weakly assists in plantarflexion and flexion of knee

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31
Q

O of popliteus

A

lateral surface of lateral condyle of femur

lateral meniscus

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32
Q

I of popliteus

A

posterior surface of tibia, sup. to soleal line

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33
Q

action of popliteus

A

weakly flexes knee and unlocks it

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34
Q

on a fixed tibia, how does popliteus act

A

laterally rotates femur to unlock

35
Q

on a fixed femur, how does popliteus act

A

medially rotates tibia to unlock

36
Q

Innervation of popliteus

A

Tibial nerve L4-S1

37
Q

O of flexor hallucis longus

A

inferior 2/3 of posterior surface of fibula

inferior part of interosseus membrane

38
Q

I of flexor hallucis longus

A

base of distal phalanx of hallux

39
Q

A of flexor hallucis longus

A

flexes hallux at all joints
plantar flexes foot
supports longitudinal arch

40
Q

innervation of flexor hallucis longus and flexor digitorum longus

A

tibial n S2-S3

41
Q

O of flexor digitorum longus

A

medial part of posterior surface of tibia inferior to soleal line
by broad aponeurosis to fibula

42
Q

I of flexor digitorum longus

A

bases of distal phalanges of lateral 4 digits

43
Q

action of flexor digitorum longus

A

flexes lateral 4 digits
plantarflexes foot
supports medial longitudinal arch of foot

44
Q

O of tibialis posterior

A

interosseus membrane
posterior surface of tibia inferior to soleal line
posterior surface of fibula

45
Q

I of tibialis posterior

A

tuberosity of navicular
all three cuneiform bones
and bases of 2,3,4 metatarsals

46
Q

Action of tibalis posterior

A

plantarflexes foot
inverts foot
supports transverse and medial longitudinal arch

47
Q

The tibialis posterior and anterior both do what?

A

invert foot

support medial longitudinal arch of foot

48
Q

Innervation of tibialis posterior

A

Tibial nerve L4-L5

49
Q

What nerve innervates all of the posterior leg

A

tibial

50
Q

The deep fascia of the leg is continuous with the ____

A

fascia lata, deep fascia of the thigh

51
Q

The crural facia surrounds the leg and is continuous with

A

the periosteum of the tibia on its anterior and medial surface (the surface you can palpate)

52
Q

Near the distal end of the leg, the fascia is thickened as

A

superior and inferior extensor retinacula

53
Q

these extend from the deep side of the fascia and attach to the lateral edge of the fibula to separate and divide the three compartments of the leg

A

anterior and posterior crural intermuscular septa

54
Q

Nerves of the leg form from branches of

A

the sciatic nerve formed from the ventral rami of spinal nerves L4-S3

55
Q

Which two main branches of the sciatic nerve are identified in the popliteal fossa (even though they may have branched in the gluteal region or thigh)

A

Tibial nerve and the common fibular nerve

56
Q

tibial nerve is formed from the

A

ventral division (of the ventral rami) of L4-S3

57
Q

The muscular branches of the tibial nerve innervate the muscles of the _____ compartment of the leg

A

posterior

58
Q

What does the tibial nerve bifurcate into

A

medial and lateral plantar nerves of the foot

59
Q

the sural nerve is made up of

A

medial sural cutaneous nerve (from tibial) and a branch from the common fibular

60
Q

What is the sural nerve

A

a cutaneous nerve that innervates the inferior lateral posterior part of the leg and the sole of the foot

61
Q

What does the common fibular nerve branch into

A

superficial and deep fibular

62
Q

what does the common fibular nerve wrap laterally around?

A

the neck of the fibula and then divides deep to the peroneus longus

63
Q

what innervates the muscles of the anterior crural compartment

A

deep fibular nerve

64
Q

What nerve pierces the anterior crural intermuscular septum to descend on the anterior surface of the interosseus membrane?

A

deep fibular

65
Q

T or F The deep fibular nerve remains deep to the extensor retinacula

A

T

66
Q

What nerve innervates the muscles of the lateral crural compartment

A

superficial fibular nerve

67
Q

What nerve descends posterolateral to the anterior crural intermuscular septum

A

superficial fibular

68
Q

What are the muscular branches of the popliteal artery?

A

heads of the gastrocnemius

69
Q

What are the terminal branches of the popliteal artery?

A

anterior and posterior tibial arteries

70
Q

Which artery becomes dorsalis pedis artery and is a terminal branch of the popliteal artery

A

anterior tibial artery

71
Q

Which artery supplies the anterior muscle compartment?

A

anterior tibial artery

72
Q

What is the main branch of the posterior tibial artery?

A

fibular artery

73
Q

Which artery runs posterior to interosseus membrane along with posterior tibial nerve?

A

posterior tibial artery

74
Q

________ artery goes around medial malleolus to end on the plantar surface of the foot as medial and lateral plantar artery

A

posterior tibial artery

75
Q

Which compartment has no major artery

A

lateral crural compartment

76
Q

muscular branches of the fibular artery are responsible for the blood supply to the _____

A

lateral crural compartment

77
Q

inflammation or swelling of tibialis anterior causing pressure on encasing crural fascia

A

shin splints

78
Q

tearing of the origin of tibialis anterior is a cause for what

A

shin splints

79
Q

tibialis posterior attached to interosseus membrane is irritated with excess/forceful dorsiflexion, consequently irritating the continuity to the periosteum of the tibia

A

hypothesis for shin splints

80
Q

damage to ____, ____, or _____ n. will cause the loss of _______ causing foot drop

A

sciatic, common fibular, deep fibular, tibialis anterior

81
Q

When is the common fibular n protected by the overlying musculature

A

after the deep branch has penetrated the anterior crural intermuscular septum

82
Q

What type of joint is the proximal tibiofibular joint

A

synovial joint planar type, supported by fibrous capsule surrounding joint

83
Q

what type of joint is the distal part of the tibiofibular joint

A

fibrous syndesmosis type anchored by an interosseous membrane

DPT Anatomy Test 2 (6 decks)

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