Popliteal Fossa, Vessels, and Nerves of the Leg and Dorsum of the Foot Flashcards Preview

MSS - MSK Exam 3 > Popliteal Fossa, Vessels, and Nerves of the Leg and Dorsum of the Foot > Flashcards

Flashcards in Popliteal Fossa, Vessels, and Nerves of the Leg and Dorsum of the Foot Deck (52)
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1

boundaries of popliteal fossa

superolateral - biceps femoris tendon
superomedial - semimembranosus
inferolateral - lateral head of gastrocnemius
onferomedial - medial head of gastrocnemius
roof - popliteal fascia of fascia lata
floor - posterior surface of capsule of knee and popliteus muscle

2

contents of popliteal fossa

termination of posterior fermoral cutaneous nerve
division of sciatic nerve into tibial and common fibular
muscular and cutaneous branhes of tibial nerve
cutaneous braches of common fibular nerve
popliteal vein and tributaries
popliteal arteries and branches
popliteal lymph nodes, lymphatic vessels, and fat

3

superficial to deep in popliteal fossa?

nerves, veins, arteries

4

popliteal artery

direct continuation of femoral artery after emerges from adductor hiatus

deepest of vascular structures in popliteal fossa

terminates at inferior border of popliteus

5

genicular anastomosis**

won't ask about the ten arteries
-will be some lab with some arteries tagged
-on written maybe something in principal about it

6

branches of popliteal artery

lateral and medial superior genicular artery
lateral and medial inferior genicular artery
middle genicular artery

sural branches

7

how many genicular arteries?

5

**like 5 spots on a die

8

lateral and medial superior genicular artery

come off above heads of gastrocneius

deep to hamstring muscles***

in fat

9

lateral and medial inferior geniuclar arteries

deep to heads of gastrocnemius

in fascia

10

middle genicular artery

arises from anterior surface ad passes through capsule of knee to medial heads of gastrocnemius muscle

11

sural branches

pass directly into lateral and medial heads of gastrocnemius muscle

there is 2 of them

12

sural area

back of lower leg

13

crural area

front of lower leg

14

dissect gastroc where?

below the vasculature

15

bifurcation of popliteal artery?

posterior and anterior tibial arteries

16

anterior tibial artery

passes above origin of tibialis posterior muscle and interossesous membrane to gain entrance to anterior compartment of leg

17

posterior tibial recurrent

posterior branch of anterior tibial artery

ascends and joins the genicular anastamosis

18

circumflex fibular artery

encircles head of fibula to join genicular anastamosis

variable in origin
-from distal popliteal artery or proximal of either anterior or posterior tibial artery

19

anterior branches of anterior tibial artery?

anterior tibial recurrent
medial and lateral malleolar branches

20

dorsalis pedis

terminal branch of anterior tibial artery as it passes inferior to superficial extensor retinaculum

21

branches of dorsalis pedis?

lateral and medial tarsal arteries
arcuate artery
first dorsal metatarsal artery
deep plantar artery

22

how do dorsal metatarsal arteries communicate?

via perforating arteries with plantar circulation

23

branches of dorsalis pedis?

lateral and medial tarsal arteries
arcuate artery
first dorsal metatarsal artery
deep plantar artery

24

posterior tibial artery

one of two terminal branches of popliteal artery

-deep to soleus
-goes within substance of flexor hallucis longus

25

branches of posterior tibial artery

circumflex fibular artery
fibular artery
communicating branch
posterior medial malleolar
medial calcaneal arteries
medial and lateral plantar arteries

26

circumflex fibular artery

variabble

27

fibular artery

provides major blood supply to lateral crural compartment

branches from proximal portion of the posterior tibial artery and passes laterally

branches:
muscular
nutrient artery
communicating branches
perforating arteries
posterior lateral malleolar artery (terminal branch)

28

posterior tibial artery?

one of two terminal branches of popliteal artery
courses inferiorly deep to soleus occupying a more or less central position in the leg

passes behind medial malleolus between tibial nerve and tendon of flexor digitorum longus to reach plantar surface of foot***

29

genicular anastomisis

rich blood supply to capsule of knee joint as well as surrounding muscles

-composed of ten vessels arising from:
lateral femoral circumflex artery
femoral artery
popliteal artery
anterior and posterior tibial artery

has superficial and deep plexus***

30

superficial plexus

blood to muscles in area of knee