Unit 4: lower limb Flashcards Preview

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Flashcards in Unit 4: lower limb Deck (61):
1

the opening in the fascia lata

saphenous opening

2

thick part of fascia lata

iliotibial tract

3

Deep fascia froms septa that divide to

compartments and extensor retinaculum

4

Iliotibial band inserts

gerdys tubercle

5

Small saphenous

rise halfway up then goes deep, originate from dorsal venous arch; begins at lateral mediolis, cural nerve

6

Great saphenous

at knee medial to patella, passes anterior to the medial malleolus

7

clinical importance of gsv

if valves become weak, vein stretches, backflow of blood, varicose veins

8

perforating veins job

conduct blood to deeper vessels, so muscles can help push blood back

9

accessory saphenous

from ssv united with another vein

10

Deep veins

accompany all arteries, paired, contain vascular sheath (to help push blood back), named for vessel

11

Femoral vein

starts medial* to artery, goes through femoral sheath, retroinguinal space, becomes external iliac

12

Retroinguinal space

vessels, muscles, and nerves enter and exit; formed by abominal fascia and inguinal ligament, divided into muscle and vascular compartment

13

empty canal next to vessels

femoral canal allows vessels a place to expand

14

3 compartments of the femoral sheath

lateral, femoral artery; intermediate, femoral vein; medial, space filled areolar tissue lymph nodes

15

adductor canal

where sartorius muscle crosses over adductor longus muscle, vein lying posterior to the artery

16

where the femoral artery and vein leave adductor canal

adductor canal

17

popliteal vessels

as soon as femoral passes arch

18

plantar veins

fromthe bottom of the foot form the fibular and posterior tibial veins

19

perforating vessels

from saphenous veins form the anterior tibial vein in the anterior leg, from the thigh form deep veins which joins the femoral veins in the triangle

20

big toe drains

dorsal venal arch then GSV and femoral

21

little to drains

from dorsal arch to SSV, to popliteal to femoral

22

Compartment syndrome

Fascical compartments are closed spaces, sustained intense use, blunt trauma, burns can lead to edema; pressure rise to point where small nerves and blood vessels are compressed and blood flow pulses are diminished

23

major arteries of thigh

femoral, deep artery of thigh, obturator, medial and lateral circumflex humoral

24

circumflex arteries

keep head of femur alive

25

major arteries of the leg

popliteal and gericular, anterior tibial, fibular, dorasal artery of the foot, lateral plantar

26

anterior tibial

comes of tibial artery, peirces interosseous and supplies anterior

27

lymphatic drainage

2 levels, superficial drains superficial tissue (GSV, SSV) end in popliteal nodes then drain into the deep inguinal nodes, and deep that accompany the vessels ending in deep inguinal then external iliac, then common iliac

28

cutaneous nerves of lower limb

nerves supplying skin of LL originate from the lumbar and sacral plexus from L1-S3; anterior and posterior branches of femoral supply greatest area

29

saphanous nerve

anteriomedial area

30

which part of the thigh is supplied by l2-l3

the anterior thigh

31

Sacral nerves supply

the back of the thigh

32

anterior compartment of the thigh

contains flexors of hip and extensors of the knee, pectineus, iliosoas, sartoeus, quads

33

iliopsoas

chief flexor of thigh, iliacus andpsoas, lumbar vertebrae, iliac fossa, lesser trochantor, flexes trunk and hip

34

Pectineus

flat quadrangular muscle on superiomedial thigh, superior ramus of pumic to pectineal line...

35

iliopsoas

chief flexor of thigh, iliacus andpsoas, lumbar vertebrae, iliac fossa, lesser trochantor, ...

36

sartorius

Asia, medial surface, mostly synergists

37

rectus femoris

AIIS, Extends leg at knee joint and steadies hip joint and helps iliopsoas flex thigh, femoral nerve

38

vastus lateralis

lateral femur, extend leg at knee joint, femoral nerve

39

vastus medialis

Medial femur, extend leg at knee joint, femoral nerve

40

the muscles the have separate innnervation

pectineus (obturator), abductor magnus (branch of..)

41

quadriceps femoris

4 parts, 3 act on knee, 1 on knee and hip; most important when rising from sitting and walking upstairs*

42

Adductor brevis

Lies deep to pectineus and adductor longus but anterior to add magnus; O: inferior ramus of pubis I: Superior linea aspira A: Adducts thigh

43

vastus medialis

...

44

What is consistant with femoral nerve

walking up stairs, high kick, sitting down

45

Hamstring part of adductor magnus

O: ischial, I lengh of linea aspira and medial supercondylar line, A: extends thigh

46

Medial compartment

adductor of thigh, stabilize stance and correct lateral sway of trunk, originate at anterioinferior surface of pelvis, insert on linea aspira of femur

47

parts of medial compartment

adductor longus, adductor brevis, adductor magnus, gracilius, obturator externus

48

adductor longus

most anteroiorly placed, O: pubis just inferior to pubic tubercle, I: linea aspira anterior to add brevis and add magnus, A: adducts thigh

49

Adductor brevis

Lies deep to pectineus and adductor....

50

posterior thigh contains

Semitendinosis, Semimembranosis, Biceps femoris

51

Adductor magnus

largest and most posteriorly; has adductor and hamstring part that differ in actions and innervation

52

adductor part of adductor magnus

O inferior ramus of pubis, I length of linea aspira and medial supercondular line, adducts thigh, flexes thigh

53

Hamstring part of adductor magnus

O: ischial, I lengh of linea aspira and medial supercondylar ridge....

54

Gracilis

most superficial and medially placed, crosses both hip and knee, stabilizer; o: inferior ramus of pubis, I: pes anserinus on medial tibia, A: adducts thigh flexes leg, medially rotates

55

Pes anserinus

sartorieus, gracils, semitendinosus insert at medial face of tibia

56

obturator externus

one of two muscles that sandwich the obturator foramin; O: margin of obturator foramen and membrane, I: posterior aspect of greater trochanter, A: laterally rotates thigh, steadies head of femur at acetabulum

57

Posterior thigh

Extensors of hip and flexor of knee, originate from iscial tuberosity

58

posterior thigh contains

...

59

Semitendinosis

O: ischial tuberosity, I: medial surface of tibia, A: extend thigh, flex leg, rotate medially, extend trunk

60

Biceps femoris

O: long head, ischial tuberosity, short head,

61

deep fascia of the leg is called

fascia lata