Joints of the Lower Limb II Flashcards Preview

Anatomy > Joints of the Lower Limb II > Flashcards

Flashcards in Joints of the Lower Limb II Deck (33):
1

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

2

the knee joint:
cruciate ligaments (2)

anterior
posterior

3

the knee joint:
anterior cruciate ligament:

attached to the ___ area of the ___

passes upward, backward, & laterally to be attached to the (anterior/posterior) part of the (medial/lateral) surface of the ___

anterior intercondylar area of the tibia

posterior part
medial surface
lateral femoral condyle

4

the knee joint:
anterior cruciate ligament:

extended leg: prevents (anterior/posterior) displacement of the ___

flexed leg: prevents (anterior/posterior) displacement of the ___

posterior
femur on tibia

anterior
tibia

5

the knee joint:
posterior cruciate ligament:

attached to the ___ area of the ___

passes upward, forward, & medially to be attached to the (anterior/posterior) part of the (medial/lateral) surface of the ___

posterior intercondylar area of the tibia

anterior part
lateral surface
medial femoral condyle

6

the knee joint:
posterior cruciate ligament:

extended leg: prevents (anterior/posterior) displacement of the ___

flexed leg: prevents (anterior/posterior) displacement of the ___

anterior
femur on the tibia

posterior
tibia

7

the knee joint:
extension of the leg:

round ___ role forward like wheel on the ground

___ ligament becomes tensed which inhibits forward movement of the ___

femoral condyles

posterior cruciate ligament
femur

8

the knee joint:
extension of the leg:

further extension of the leg is accompanied by ___ of the ___

results in tightening of all of the ligaments & knee becomes a mechanically rigid structure: "___"

medial rotation of the femur

"screwing home movement"

9

the knee joint:
flexion of the leg:

ligaments must first be (tensed/relaxed)

accomplished by the ___ muscle (laterally rotates the femur or medially rotates the tibia): "___"

relaxed

popliteus muscle
"unlocking the knee joint"

10

muscles for movements of the knee joint:
flexion (6)

biceps femoris
semitendinosus
semimembranosus
gracilis
sartorius
popliteus

11

muscles for movements of the knee joint:
extension (1)

quadriceps femoris

12

muscles for movements of the knee joint:
medial rotation (4)

sartorius
gracilis
semitendinosus
semimembranosus

13

muscles for movements of the knee joint:
lateral rotation (1)

biceps femoris

14

damage to the knee joint:

tears of the ___ ligament are common when excessive force is applied to the joint

often accompanied by damage to other knee structures (2)

tears of the ___ are much less common

anterior cruciate ligament

tibial collateral ligament
medial meniscus

posterior cruciate ligament

15

damage to the knee joint:

w/ a torn anterior cruciate ligament, the tibia can be pulled excessively (forward/backward) on the femur when the leg is flexed at the knee joint: "___"

w/ a torn posterior cruciate ligament, the tibia can be pulled excessively (forward/backward) on the femur when the leg is flexed at the knee joint: "___"

forward
"anterior drawer sign"

backward
"posterior drawer sign"

16

damage to the knee joint:

the medial meniscus is damaged much (more/less) frequently than the lateral meniscus owing to its (strong/weak) attachment tot he ___ ligament

more
strong
tibial collateral ligament

17

damage to the knee joint:

"unhappy triad of knee injuries" (3)

common injury in ___

tearing of tibial collateral ligament
tearing of medial meniscus
tearing of anterior cruciate ligament

football

18

ankle joint:

articulations (2)

allows ___ & ___

most stabile during ___

distal ends of tibia & fibula (plus malleoli)
trochlea of talus

dorsiflexion
plantar flexion

dorsiflexion

19

ankle joint:
ligaments (2)

medial (deltoid) ligament
lateral ligament

20

ankle joint:
medial (deltoid) ligament:

(stronger/weaker) than other ankle joint ligament

stronger

21

ankle joint:
lateral ligament:

(stronger/weaker) than other ankle joint ligament

consists of three bands (3)

weaker

anterior talofibular ligament
calcaneofibular
posterior talofibular

22

ankle joint:
lateral ligament:
three bands:

anterior talofibular ligament: ___ to ___

calcaneofibular: ___ to ___

posterior talofibular: ___ to ___

lateral malleolus to talus

lateral malleolus to calcaneous

lateral malleolus to talus

23

movements of the ankle joint:
dorsiflexion (4)

tibialis anterior
extensor hallucis lingus
extensor digitorum longus
fibularis tertius

24

movements of the ankle joint:
plantar flexion (8)

gastrocnemius
soleus
plantaris
fibularis longus
fibularis brevis
tibialis posterior
flexor digitorum longus
flexor hallucis longus

25

damage to the ankle joint:

___ sprains of the (medial/lateral) ankle

usually result from excessive ___ of the foot w/ ___ of the ankle

the ___ ligament is usually torn

the ___ ligament may also be torn

acute
lateral

inversion
plantar flexion

anterior talofibular ligament

calcaneofibular ligament

26

transverse tarsal joint & subtalar joints:

transverse tarsal joints refer to the ___ & ___ joints together

subtalar joint is the joint b/n the ___ & ___

main joints responsible for ___ & ___ of the ___

talocalcaneonavicular & clacaneocuboid joints

talus & calcaneus

eversion & inversion of the foot

27

arches of the foot:
medial longitudinal arches (5)

calcaneus
talus
navicular
three cuneiforms
medial three metatarsals

28

arches of the foot:
lateral longitudinal arches (3)

calcaneus
cuboid
lateral two metatarsals

29

arches of the foot:
transverse arches

cuboid
three cuneiforms
bases of the medial three metatarsals

30

maintenance of the integrity of the arches of the foot:
main supports (4)

plantar calcaneonavicular ("spring") ligament
long plantar ligament
short plantar ligament
plantar aponeurosis

31

maintenance of the integrity of the arches of the foot:
plantar calcaneonavicular ("spring") ligament:

___ to ___

sustentaculaum tali to navicular bone

32

maintenance of the integrity of the arches of the foot:
long plantar ligament:

___ to ___

calcaneus to cuboid

33

maintenance of the integrity of the arches of the foot:
short plantar ligament:

___ to ___

calcaneus to cuboid

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