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)
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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