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Anatomy Block 4 > Leg > Flashcards

Leg Flashcards

0
Q

What does the superior extensor retinaculum attach to

A

Anterior borders of tibia and fibula

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1
Q

What divides the posterior compartment of the leg into superficial and deep parts

A

Transverse inter muscular septum

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2
Q

What does the inferior extensor retinaculum attach to

A

Stem - calcaneus

Limbs - medial malleolus and medial border of foot

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3
Q

Where is the flexor retinaculum attached to

A

Medial malleolus to medial surface of calcaneus

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4
Q

What is the superior fibular retinaculum attached to

A

Lateral malleolus to lateral surface of calcaneus

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5
Q

What is the inferior fibular retinaculum attached to

A

Fibular tubercle of calcaneus and lateral surface of calcaneus

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6
Q

What arteries are the terminal branch of the popliteal artery

A

Posterior tibial artery and anterior tibial artery

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7
Q

When you feel your pulse posterior to medial malleolus, what artery is that

A

Posterior tibial artery

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8
Q

What are the terminal branches of the posterior tibial artery

A

Medial and lateral plantar arteries

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9
Q

What branch of the posterior tibial artery gives off originates from the proximal part, descends within the flexor hallucis longus, and gives off branches to ankle and heel

A

Fibular artery

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10
Q

What branch of the posterior tibial artery gives off arterial anastomoses around the knee and passes laterally around the neck of fibula

A

Circumflex fibular artery

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11
Q

What branch of the posterior tibial artery supplies the medial aspect of the heel

A

Medial calcaneal branches

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12
Q

What branch of the posterior tibial artery supplies anastomoses around the ankle joint

A

Posterior medial malleolar branch

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13
Q

What nerve and vein does the anterior tibial artery travel with

A

Deep fibular nerve

Anterior tibial veins

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14
Q

At the ankle, what does the anterior tibial artery name change into

A

Dorsalis pedis artery

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15
Q

How does a fracture at the tuberosity of the 5th metatarsal happen

A

Foot is suddenly inverted, fibularis brevis rips it off

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17
Q

Where does the blood supply for the lateral side of the leg come from

A 
Fibular artery (from posterior leg )
And anterior tibial artery (from anterior leg)
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18
Q

origin of gastrocnemius

A

LATERAL HEAD: lateral surface of lateral condyle of femur and distal end of lateral supracondylar line of femur
MEDIAL HEAD: popliteal surface of femur

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19
Q

insertion of gastrocnemius

A

common tendon (achille’s tendon)

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20
Q

action of gastrocnemius

A

plantar flexion of foot at ankle flexion of leg at knee joint

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21
Q

innervation of gastrocnemius

A

tibial nerve

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22
Q

origin of soleus

A

soleal line, medial border of tibia, head of fibula, tendinous arch b/w tibial and fibula

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23
Q

insertion of soleus

A

calcaneal tendon

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24
Q

action of soleus

A

plantar flexion of foot at ankle

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25
Q

innervation of soleus

A

tibial nerve

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26
Q

origin of the plantarius

A

lateral supracondylar line of femur

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27
Q

insertion of the plantarius

A

b/w gastrocnemius and soleus, along medial border of achille’s tendon, inserts into calcaneus

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28
Q

action of the plantarius

A

plantar flexion of foot at ankle joint
assists in flexion of leg at knee joint

29
Q

innervation of the plantarius

A

tibial nerve

30
Q

origin of the popliteus

A

in knee joint, lateral condyle of femur

31
Q

insertion of the popliteus

A

comes out knee joint and inserts into posterior tibia

32
Q

action of the popliteus

A

medial rotation of tibia (IF FOOT IS OFF GROUND) and lateral rotation of femur (IF FOOT IS ON GROUND)

33
Q

innervation of the popliteus

A

tibial nerve

34
Q

origin of the flexor digitorum longus

A

posterior surface of shaft of tibia

35
Q

insertion of the flexor digitorum longus

A

tendon is posterior to medial malleolus, enters sole of foot and divides into 4 then inserts into lateral 4 toes

36
Q

action of the flexor digitorum longus

A

flexion of lateral 4 toes

plantar flexion of foot at ankle joint

37
Q

innervation of the flexor digitorum longus

A

tibial nerve

38
Q

origin of the flexor hallucis longus

A

lower 2/3 of shaft of fibula

39
Q

insertion of the flexor hallucis longus

A

tendon is posterior to medial malleolus, runs anteriorly into sole of foot to insert into base of distal phalanx of big toe

40
Q

action of the flexor hallucis longus

A

flexion of big toe

plantar flexion of foot at ankle

41
Q

innervation of the flexor hallucis longus

A

tibial nerve

42
Q

origin of tibialis posterior

A

posterior shaft of tibia, upper half of posterior fibula, interosseous membrane

43
Q

insertion of tibialis posterior

A

tendon goes posterior to medial malleolus, inserts into navicular

44
Q

action of tibialis posterior

A

plantar flexion of foot at ankle inversion of foot

45
Q

innervation of tibialis posterior

A

tibial nerve

46
Q

origin of tibialis anterior

A

lateral condyle of tibia, shaft of tibia, interosseous membrane

47
Q

insertion of tibialis anterior

A

tendon passes under extensor retinacula and inserts into medial cuneiform + base of 1st metatarsal

48
Q

innervation of tibialis anterior

A

deep fibular nerve

49
Q

action of tibialis anterior

A

dorsiflexion of foot at ankle joint + inversion of foot

50
Q

origin of extensor digitorum longus

A

lateral condyle of tibia, shaft of fibula, interosseus membrane

51
Q

insertion of extensor digitorum longus

A

tendon passes under extensor retinacula and divides into 4; each of those divides into 3 and insert onto phalanx

52
Q

action of extensor digitorum longus

A

extension of lateral toes; dorsiflexion of foot

53
Q

innervation of extensor digitorum longus

A

deep fibular nerve

54
Q

origin of extensor hallucis longus

A

anterior shaft of fibula and interossesus membrane

55
Q

insertion of extensor hallucis longus

A

tendon passes uncer extensor retinaculum and inserts into big toe

56
Q

action of extensor hallucis longus

A

extension of big toe

dorsiflexion of foot at ankle

57
Q

innervation of extensor hallucis longus

A

deep fibular nerve

58
Q

origin of fibularis tertius

A

lower 1/4 of anterior of fibula + interosseus membrane

59
Q

insertion of fibularis tertius

A

dorsal shaft and base of 5th metacarpal

60
Q

action of fibularis tertius

A

dorsiflexion of foot at ankle

eversion of foot

61
Q

innervation of fibularis tertius

A

deep fibular nerve

62
Q

origin of fibularis longus

A

lateral surface of head of fibula and lateral surface of shaft of fibula

63
Q

insertion of fibularis longus

A

tendon passes posterior to lateral malleolus, runs inferiorly on lateral surface of calcaneus, curves around cuboid, crosses sole of foot, and inserts into medial cuneiform

64
Q

action of fibularis longus

A

plantar flexion of foot at ankle

eversion of foot

65
Q

innervation of fibularis longus

A

superficial fibular nerve

66
Q

origin of fibularis brevis

A

lateral surface of shaft of fibula

67
Q

insertion of fibularis brevis

A

tendon passes posterior to lateral malleolus, runs inferiorly on lateral surface of calcaneus, inserts into tubersosity of 5th metatasal

68
Q

action of fibularis brevis

A

plantar flexion of foot at ankle eversion of foot

69
Q

innervation of fibularis brevis

A

superficial fibular nerve

Anatomy Block 4 (14 decks)

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