Joints of the Lower Limb Flashcards Preview

MSS - MSK Exam 3 > Joints of the Lower Limb > Flashcards

Flashcards in Joints of the Lower Limb Deck (70):
1

type of joint in hip?

synovial ball and socket

2

articulation of hip joint?

head of femur and acetabulum

3

what deepens hip socket?

transverse acetabular ligament
acetabular labrum

4

acetabular labrum

fibrocartilage rim attached to bony rim of acetabulum and transverse acetabular ligament

5

capsule attachments in hip?

superior - brim of acetabulum near transverse ligament

inferior - anteriorly to intertrochanteric line and junction of neck and femur with trochanter
posteriorly possesses a free (unattached) border that covers 2/3 proximal femoral neck

6

structure of capsule in hip?

two laminae of fibers

superficial lamina
deep lamina

7

superficial lamina of hip capsule

longitudinal fibers that limit movement of limb in specific direction

8

deep lamina of hip capsule

circular fibers (zona orbicularis) which provide screw home effect between head of femur and acetabulum

**increases stability

9

iliofemoral ligament

Y shaped inverted
-one of strongest in body

attaches superiorly to AIIS and inferiorly to intertrochanteric line and inferior portion of greater trochanter

10

when is iliofemoral ligament tightest?

in full extension

11

pubofemoral ligament

forms medial inferior portion of capsule
attaches medially to brim of pubic portion of acetabulum and obturator crest of superior pubic ramus and laterally to neck of femur near lesser throchanter

12

function of pubofemoral ligament?

limits abduction, becomes tight in extension

13

gap between what ligaments?

ilio and pubofemoral ligaments anteriorly and inferiorly

covered by psoas major and its bursa
-iliopectineal bursa

14

ischiofemoral ligament

attached posteriorly to ischial portion of acetabulum, laterally to neck of femur medial to root of greater trochanter

fibers compromising the ligament spiral in their course


forms posterior free margin of capsule

becomes tight in extension

15

ligamentum teres capitis femoris

arises from edge of acetabular notch and transverse acetabular ligament

attaches to fovea capitis of femur

limits adduction***

also has artery

16

synovial lining of hip

surrounds/lines non-articular elements of joint

17

arterial supply of hip

lateral and medial femoral circumflex
superior and inferior gluteal
obturator artery provides branch to head of femur

18

innervation of hip joint?

articular branches from nerves to muscles which surround joint
-femoral, superior gluteal, nerve to quadratus femoris

19

limits to range of motion at hip?

capsular and intracapsular ligaments
soft tissue
opposite limb

20

what is more powerful at hip?

lateral rotation of thigh

21

type of joint at knee

synovial modified hinge (does allow some rotation)

22

joint articulations of knee

femoral and tibial condyles and femur with patella

23

osseous modification of knee joint?

expanded roller surface of femur and expanded tibial plateau

24

what guides rotation of knee?

intercondylar eminence

25

capsule of knee attachments?

superiorly to condyles and intercondylar fossa of femur
inferiorly to margins of tibial condyles

thicker posteriorly

laterally, buttressed by IT tract, anteriorly by expansions of fascia lata

small openings for communications between muscular bursa and synovial cavity of joint

26

lateral and medial patellar retinacula

expansion of vastus lateralis and medialis that pass from attachments of these muscles on patella to the tibial condyles as far posterior as collateral ligaments

27

oblique popliteal ligament

expansion of semimembranous tendon superolaterally toward lateral femoral condyle

28

arcuate popliteal ligament

expansion of attachment of biceps femoris to fibular head

arches superiorly and medially over popliteus muscle

29

ligaments of capsule in knee

lateral and medial patella retinacula
oblique popliteal
arcuate popliteal

30

ligamentum patella

extension of quadriceps tendon across tibia to tibial tuberosity

31

medial collateral ligament

aka tibial

broad and thin but tough
passes from medial femoral epicondyle to upper medial portion of tibia below condyle

attaches to medial meniscus***

32

lateral collateral ligament

aka fibualr

pencil like cord from lateral femoral epicondyle to head of fibula

tendon of popliteus muscle passes between it and the capsule of the knee so that no attachments of collateral ligament to lateral meniscus are possible

33

what passes between lateral collateral and lateral meniscus?

tendon of popliteus muscle

34

synovia of knee joint

lines interior of joint except articular surface and cruciate ligaments

cruciates are intracapsular but extra synovial***

35

infrapatellar synovial fold

from infrapatellar fat pad to cruciate ligaments; divide joint space to lateral and medial tibiofemoral compartments

36

suprapatellar bursa

extension of synovial cavity beneath quadriceps tendon

37

cartilage of knee?

meniscus

38

lateral meniscus?

lunar

39

medial meniscus?

semi-lunar

40

attachment of menisci?

attached to intercondylar area anteriorly and posteriorly

coronary ligaments attach lateral margins of menisci to margin of tibial plateau

41

transverse genicular ligament

attach menisci to each other

42

function of menisci?

cushion joint and stabilize articulation by deepening articular surface

43

intrasapsular ligaments of knee?

cruciate ligaments
meniscofemoral ligaments

44

anterior cruciate ligaments

from medial surface of lateral femoral condyle to anterior intercondylar area

prevents posterior displacement of femur when foot is fixed

45

posterior cruciate ligament

lateral surface of medial condyle of femur to posterior intercondylar area

prevents forward displacement of femur when foot is fixed firmly

46

meniscofemoral ligaments

keep menisci from being trapped during knee flexion

stabilize knee during posterior translation of lateral femoral condyle

47

anterior meniscofemoral ligament

extend from lateral meniscus to blend superiorly with anterio surface of posterior cruciate ligament

48

posterior meniscofemoral ligament

extend from lateral meniscus to blend superiorly with posterior surface of posterior cruciate ligament

49

arterial supply of knee

genicular anastomosis

50

innervation of knee

articular branches are provide by nerves which innervate the muscles which surround the joint

femoral, obturator, tibial, common fibular

51

proximal tibiofibular joint?

synovial plane/gliding joint

articulation - head of fibula and fibular facet of posterolateral surface of lateral tibial condyle

52

what strengthens capsule of proximal tibiofibular joint

anterior and posterior ligaments of head of fibula

53

arteries to proximal tibiofibular joint?

lateral inferior genicular
anterior tibial recurrent

54

nerves to proximal tibiofibular joint

common fibular nerve
nerve to popliteus

55

distal tibiofibular articulation?

fibrous joint between distal tibia and fibula
-tibiofibular syndesmosis

56

ligaments of distal tibiofibular articulation

interosseous ligament
anterior, posterior, and transverse tibiofibular ligaments

57

interosseous ligament?

thickened inferior portion of interosseous ligament in distal tibiofibular joint

58

anterior, posterior, and transverse tibiofibular ligaments

very strong

59

arteries to distal tibiofibular joint?

fibular artery

60

nerve to distal tibiofibular joint?

deep fibular and tibial nerves

61

ankle joint?

talocrural

synovial hinge joint

62

articulation of talocrural joint?

inferior tibial surface
medial malleolus of tibia and lateral malleolus of fibula

63

medial malleolus and lateral malleolus

form mortise

64

talus

form tenon

65

capsule of talocrural joint?

lax anterior and posteriorly to allow flexion and extension (dorsi and plantar)

buttressed laterally and medially by strong collateral ligaments

66

medial collateral ligaments of talocrural?

**stronger
deltoid ligament
-anterior tibiotalar
-tibionavicular
-tibiocalcaneal
-posterior talofibular

67

lateral collateral ligaments of talocrural?

**weaker
anterior talofibular
calcaneofibular
posterior talofibular

68

arterial of talocrural joint?

malleolar network

69

nerves to talocrural joint?

tibial and deep fibular nerves

70

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