Organization of the lower limb Flashcards

1
Q

What is the main reason for the increased stability of the hip joint

A

deeper socket, acetabulum

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2
Q

What motions does the hip joint limit

A

extension and ABduction

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3
Q

which structural component of lower limb does not contribute to the stability

A

fibula, mainly for attachments

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4
Q

What type of joint does the ankle provide

A

hinge

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5
Q

What are the layers of superficial fascia in the lower limb

A

Fatty layer and membranous layer

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6
Q

What are the names of the deep fascia in lower limb

A

fascia lata, gluteal aponeurosis, crural fascia, plantar and dorsal fascia of the foot

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7
Q

What is the gluteal aponeurosis

A

forms an incomplete inter muscular septum between the gluteus maximus and medius
inferiorly from posterior portion of iliac crest

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8
Q

what is fascia cribrosa

A

found below the saphenous vein opening and vein itself

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9
Q

Where is the crural fascia found

A

extension of fascia lata below the knee

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10
Q

What are the intermuscular septae in thigh

A

medial and lateral

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11
Q

what are the intermuscular septae in the leg

A

anterior and posterior

transverse (superficial and deep posterior compartments)

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12
Q

What are the components of the retinacula

A

superior and inferior extensor
superior and inferior fibular
flexor retinaculum

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13
Q

what is the fascia of the dorsum of the foot continuous with

A

the extensor retinacula

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14
Q

describe plantar fascia

A

continuous with the fascia from dorsum and also has a thick central part known as planta aponeurosis

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15
Q

What is the general function of mm in the anterior femoral compartment

A

flex thigh and or extend leg

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16
Q

What are the borders of the femoral triangle

A

inguinal lig, sartorius, ADductor longus mm

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17
Q

what is found in femoral triangle

A

femoral vein, artery, nerve and deep inguinal lig

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18
Q

What are the general functions of mm in the medial femoral compartment

A

Flex, ADduct and rotate the thigh

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19
Q

What is the ADductor canal

A

connects femoral triangle with popliteal fossa

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20
Q

borders of ADductor canal

A

adduclor mm, vastus medialis and the sartorius

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21
Q

what is found in the ADductor canal

A

femoral a, v, saphenous n, and nerve to vastus medialis

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22
Q

How many compartments are in gluteal area

A

superficial and deep

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23
Q

What are the general functions of mm in the superficial gluteal region

A

ABducts, flexes and medially rotates, extends and laterally rotates thigh

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24
Q

What are the general functions of mm in the deep gluteal region

A

ABduct and laterally rotate the thigh

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25
Q

What aa and nn suply gluteal region

A

superior and inferior gluteals

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26
Q

what passes between superficial and deep gluteal regions

A

sciatic n

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27
Q

what are the general functions of mm in the posterior femoral compartment

A

flex the leg and extend thigh

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28
Q

what provides inn to all mm in the posterior femoral compartment

A

sciatic

29
Q

What surrounds the popliteal fossa

A

semimembranosus, semitendinosus, biceps femoris and gastrocnemius

30
Q

what is contained in the popliteal fossa

A

popliteal aa and popliteal v, bifurcation of sciatic n

31
Q

What are the compartments of the posterior crural area

A

superficial and deep

32
Q

what mm are in the superficial posterior crural area

A

gastrocnemius, soleus, plantaris which all flex leg and plantar flex foot

33
Q

what are the general functions of mm in the deep posterior crural area

A

mm which plantar flex and invert foot

34
Q

what are the general functions of the mm in the lateral crural compartment

A

mm that plantar flex and evert foot

35
Q

what n and a supply posterior and lateral compartments of leg

A

posterior- tibial n, posterior tibial a

lateral- superficial fibular n, fibular a

36
Q

what are the general functions of the mm in ther anterior crural compartment and dorsum of foot

A

dorsi flex and invert the foot, extend the toes and assist in eversion of the foot

37
Q

what a and n supply the anterior crural compartment and dorsum of foot

A

deep fibular n and anterior tibial a

38
Q

What are the 4 compartments of the plantar foot

A

medial (great toe)
lateral (small toe)
central
interosseous

39
Q

What does the posterior tibial a turn into

A

lateral and medial plantar aa

40
Q

what does the tibial n turn into

A

lateral and medial nn

41
Q

What is the major a that supplies lower limb

A

femoral a

42
Q

after exiting the popliteal fossa what does the popliteal a turn into

A

anterior and posterior tibial aa

43
Q

what are the deep vv of the leg named for

A

the aa they run with

44
Q

where does the great saphenous v begin

A

medial side of the dorsum of the foot

45
Q

where does the great saphenous v go relative to medial malleolus and medial condyle

A

anterior to medial malleolus, posterior to medial condyle

46
Q

where does the lesser saphenous v begin

A

lateral side of the dorsum of the foot

47
Q

where does the lesser saphenous v traverse in leg

A

behind lateral malleolus and along midline of the calf paralleling the course of sural n

48
Q

what does the lesser saphenous v join

A

pierces crural fascia to join popliteal v

49
Q

clinical correlation of valvular incompetency

A

varicosities

50
Q

where are the nodes of the leg found

A

popliteal
superficial inguinal
deep inguinal
iliac

51
Q

Where does superficial lymph drain? and what?

A

lymph channels next to superficial vv

drain all superficial areas

52
Q

where does deep lymph drain? and what?

A

lymph channels next to deep vessels

mm, tendons and joint capsules

53
Q

What spinal cord levels supply lower limb

A

L2-S3

54
Q

What supplies femoral nn

A

L2-L4

55
Q

what does femoral nn supply

A

provides motor and sensory

inn anterior femoral mm and skin of anterior thigh, medial led and medial foot

56
Q

what supplies obturator n

A

L2-L4

57
Q

what does the obturator n supply

A

motor inn to ADductor mm of thigh and cutaneous inn to medial surface of thigh

58
Q

What supplies sciatic n

A

L4-L5 S1-3

59
Q

what does the sciatic n bifurcate into

A

tibial and common fibular nn

60
Q

what does the sciatic nn supply

A

all posterior thigh, leg and plantar mm as well as specific cutaneous

61
Q

What supplies cutaneous inn to lower limb

A

lumbar/sacral plexuses ventral rami L1-S2

dorsal rami of spinal nn L1-L3 and S1-S3

62
Q

what dermatomes supply lower limb

A

spinal cord levels L1-S2

63
Q

in which direction do dermatomes spiral lower limb

A

lateral to medial

64
Q

Where does the L4 dermatome lay

A

anterior to greater trochanter, overlaying patella, medial malleolus and great toe

65
Q

Where do S1S2 dermatomes lay

A

descend middle of posterior thigh and leg

66
Q

where does the S1 dermatome lay

A

lateral malleolus

67
Q

Where does the S2 dermatome lay

A

medial plantar surface of heel

68
Q

Where do L4 L5 S1 dermatomes lay

A

dorsum of plantar surface of the foot from medial to lateral