Joints of the Lower Limb I Flashcards Preview

Anatomy > Joints of the Lower Limb I > Flashcards

Flashcards in Joints of the Lower Limb I Deck (27):
1

hip joint:

___ joint

articulations (2)

ball & socket joint

head of femur
acetabulum of hip bone

2

hip joint:
acetabulum:

___ deepens the cavity of the joint

articular surface is ___-shaped & deficient (superiorly/inferiorly) at the ___, which is bridged by the ___ ligament

fibrocartilage acetabular labrum

horseshoe-shaped
inferiorly
acetabular ntoch
transverse acetabular ligament

3

hip joint:
ligaments (4)

iliofemoral ligament
ischiofemoral ligament
pubofemoral ligament
ligament of head of femur

4

hip joint:
iliofemoral ligament:

on of the (strongest/weakest) ligaments in the body

resists ___

strongest

hyperextension

5

hip joint:
ischiofemoral ligament:

(thickest/thinnest) of the three main ligaments

resists ___

thinnest

hyperextension

6

hip joint:
pubofemoral ligament:

blends w/ the lower portion of the ___ ligament

resists ___

iliofemoral ligament

over abduction

7

hip joint:
ligament of head of femur:

runs b/n ___ fossa & ___ ligament to the ___ of the ___

(a lot of / no) importance in adults

may play a role in ___ of the joint in young children

acetabular fossa
transverse lgiament
fovea capitus of the femur

no

stabilization

8

muscles for movements of the hip joint:
flexion (3)

iliopsoas
rectus femoris
sartorius

9

muscles for movements of the hip joint:
extension (2)

gluteus maximus
hamstring muscles

10

muscles for movements of the hip joint:
abduction (4)

gluteus medius
gluteus minimus
sartorius
tensor fasciae latae

11

muscles for movements of the hip joint:
adduction (5)

adductor longus
adductor brevis
adductor magnus
gracilus
pectineus

12

muscles for movements of the hip joint:
lateral rotaiton (7)

piriformis
obturator internus
obturator externus
superior gemellus
inferior gemellus
quadratus femoris
gluteus maximus

13

muscles for movements of the hip joint:
medial rotation (3)

gluteus medius
gluteus minimus
tensor fasciae latae

14

muscles for movements of the hip joint:
circumduction

combination of all other movements

15

congenital dislocation of hip joint:

(common/rare), occurring approximately 1.5 per 1000 births

girls are affected at least 8x (more/less) than boys

the upper lip of the ___ fails to develop & the head of the ___ rises up out of it onto the gluteal surface of the ___, giving the appearance that the affected limb is (longer/shorter)

common

more

acetabulum
femur
ilium
shorter

16

traumatic dislocation of hip joint:

(common/rare) b/c of the (strength/weakness) of the joint

usually caused by high ___ injury such as a motor vehicle accident when a person is seated in a vehicle w/ the joint ___d & ___d

a head-on collision that causes the knee to strike the dashboard may displace the ___ (anteriorly/posteriorly) tearing this part of the capsule & shattering it

rare
strength

energy
flexed & adducted

femoral head
posteriorly

17

traumatic dislocation of hip joint:

associated fractures of the ___ & ___ are not uncommon

the ___ nerve is closely related to the (anterior/posterior) surface of the joint & may be injured

acetabulum
pelvis

sciatic nerve
posterior

18

the knee joint:

(smallest/largest) & (most/least) complicated joint in the body

articulations (2)

modified ___ joint

largest
most

condyles of the femur & tibia (tibial condyles = tibial plateaus)

hinge joint

19

the knee joint:
extracapsular ligaments (5)

patellar
tibial collateral
fibular collateral
oblique popliteal
arcuate popliteal

20

the knee joint:
patellar ligament:

___ to ___

extension of ___ tendon

helps ___ the knee joint throughout its range of movement

patella to tibial tuberosity

quadriceps femoris

stabilize

21

the knee joint:
tibial collateral ligament:

___ to ___

firmly attached to the ___ (by the (superficial/deep) part of the ligament)

medial femoral epicondyle to tibia

medial meniscus
deep

22

the knee joint:
fibular collateral ligament:

___ to ___

separated from the lateral meniscus by the ___ tendon

lateral femoral epicondyle to fibula

popliteus tendon

23

the knee joint:
oblique popliteal ligament:

expansion of ___ tendon

(anterior/posterior) support

semimembranosus tendon

posterior

24

the knee joint:
arcuate popliteal ligament:

(anterior/posterior) thickening of the ___ at the upper edge of the ___ tendon

(anterior/posterior) support

posterior
capsule
popliteus tendon

posterior

25

the knee joint:
the menisci:

wedge-shaped semilunar pieces of ___

attached to the ___ area of the ___ medially

attached to the ___ laterally

fibrocartilage

interocondylar area of the tibia

fibrous capsule

26

the knee joint:
the menisci:

2 menisci:
- c-shaped: ___
- o-shaped: ___

___ ligament unites them anteriorly

medial meniscus
lateral meniscus

transverse ligament

27

the knee joint:
the menisci:

medial meniscus: firmly attached to the ___ ligament

lateral meniscus: separated from the fibular collateral ligament by the ___ tendon

chief function: maintain congruence of the ___ & ___ throughout range of movement

tibial collateral ligament

popliteus tendon

tibial & femoral condyles

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