Unit 4: lower limb Flashcards Preview

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Flashcards in Unit 4: lower limb Deck (61)
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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