LEC42: Lower Limb II Flashcards Preview

Structures: Part Deux > LEC42: Lower Limb II > Flashcards

Flashcards in LEC42: Lower Limb II Deck (46):
1

what secretes synovial fluid? what is it made of?

synovial membrane, just outside of joint
protein-based fluid

2

what is within synovial joint?

2 fibrocartilagenous discs, hylaine cartilage, synovial fluid

3

how does synovial joint work?

synovial membrane exudes synovial fluid, which nourishes joint, gives it movement ability

4

trauma to synovial joint known as? / caused by?

"water on the knee"
trauma, disease, aging

5

can synovial fluid regenerate?

no

6

hip joint's technical name, joint type, special characteristic

acetabulofemoral joint, synovial ball and socket joint
weight-bearing joint

7

movements of hip joint

Circumduction.
1) flexion
2) extension
3) abduction
4) adduction
5) lateral/external rotation
6) medial rotation

8

knee joint's technical name

genual

9

what from within quadriceps muscle communicates with knee joint?

quadriceps bursa
can fill with fluid

10

what part of femur/tibia articulate?

distal femur, proximal tibia

11

sesamoid bone of knee? its function?

patella, biggest sesamoid bone in body
quadriceps leverage

12

genual joint actions

1) extension
2) flexion

13

technical name of ankle joint? what articulates there?

talo-crural joint, talus bone of foot-crura (leg)

14

talo-crural joint's actions?

1) extension/dorsi-flexion
2) true flexion/plantar-flexion
3) inversion
4) eversion

15

muscles that extend acetabulo-femoral joint?

1) gluteus maximus
2) hamstrings

16

muscles that flex acetabulo-femoral joint?

1) iliopsoas
2) sartorious
3) rectus femoras
4) tensor facialata

17

muscles that adduct acetabulo-femoral joint?

1) adductor magnus, longus, brevis pectineus
2) grasilis

18

muscles that abduct acetabulo-femoral joint?

1) glueus medius, minimus
2) tensor fasciae latae

19

muscles that laterally rotate acetabulo-femoral joint?

1) sartious
2) obturator internus
3) obturator externus
4) gemelli superior and inferior
5) quadratus femoris

GRADED ACTION

20

muscles that medially rotate acetabulo-femoral joint?

medial fibers of gluteus medius and minimus

21

muscles that extend genual joint?

1) Quadriceps femoris
2) Rectus femoris
3) Vastus lateralis
4) Vastus medialis
5) Vastus intermedius

22

muscles that flex genual joint?

1) Hamstrings
2) Biceps femoris
3) Semitendonosis
4) Semimembranosus
5) Popliteus
6) Gastrocnemius
7) Plantaris

23

what is unique about the short head of the biceps femoris?

innervated by common peroneal nerve
ONLY MUSCLE IN BODY innervated by common peroneal nerve!

24

what is unique about gastrocnemius?

2 joint muscle
comes from femur

25

what is the initial unlocker of the knee?

popliteus m.

26

what is unique about plantaris m.?

vestigial muscle
constantly spasms 2 muscles if torn

27

muscles that extend talo-crural joint?

1) tibialis anterior
2) extensor halligus longus
3) extensor digitorum longus
4) continuation of peroneus tertious, the 5th toe of extensor digitalis longus

28

muscles that flex talo-crural joint?

1) Gastrocnemius
2) soleus
3) plantaris
4) tibialis posterior
5) flexior digitorum longus
6) flexor hallicus longus
7) peroneus longus
8) peroneus brevis

29

which muscles are tom, dick, and harry?

tibialis posterior, flexor digitorum longus, flexor hallicus longus

30

which muscles make up the triceps surae?

glastrocnemius, soleus
3-headed muscle of the calf
are 2-joint muscles

31

muscles that invert talo-crural joint?

tibialis anterior and posterior

32

muscles that do eversion of talo-crural joint?

1) peroneus longus
2) peroneus brevis

33

another word for peroneus?

fibularis

34

tibial nerve root values

L4, L5, S1, S2, S3

35

sister of tibial nerve?

common peroneal nerve
L4, L5, S1, S2

36

what nerves form sciatic nerve?

common peroneal + tibial nerves

37

where is sciatica felt? where is root?

lower extremity
L4, L5 radiculopathy

38

what is trendelenburg gait?

damage to abductors of hip joint, usually damage to superior gluteal nerve L4, L5, S1
ipsolateral limb moves, abductors contract and hug hip in
rock side to side

39

what is gluteus maximus lurch?

damage to inferior gluteal nerve
L5, S1, S2

40

what is drop foot caused by?

damage of common peroneal nerve
deep peroneal part is knocked out
foot drags, steppage gait

41

what is easier to lose: inversion or eversion of foot?

eversion, because would have to knock out 2 different compartments - both tibial and common peroneal nerves - to knock out inversion

42

what carries sensation from medial malleolus?

saphenous nerve

43

what is the only non-sciatic innervation distal to the knee?

saphenous nerve, branch of femoral nerve

44

if have neuropathy in leg- if can extend knee, what type of neuropathy?

distal neuropathy of saphenous nerve

45

if have neuropathy in leg- if cannot extend knee, what type of neuropathy?

L2-L4, femoral nerve neuropathy

46

if cannot bring knees together, which nerves are definitely injured?

femoral, obturator