Vasculature of the Lower Limb Flashcards Preview

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Flashcards in Vasculature of the Lower Limb Deck (95)
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1

What are the superior and inferior gluteal arteries branches of?

The internal iliac arteries.

2

What is the cruciate anastomosis?

4-way anastomosis between branches of the internal iliac, profunda femoris and circumflex femoral arteries.

3

Where is the cruciate anastomosis located?

In the hip, posterior to the proximal femur.

4

Why is the cruciate anastomosis clinically important?

Allows blood to bypass blockage of external iliac or proximal femoral arteries.

5

What are the main arteries of the thigh? (3)

-Femoral artery
-Profunda femoris artery
-Obturator artery

6

Which artery supplies the anterior compartment of the thigh?

Femoral artery.
-continuation of external iliac

7

What is the boundary of the femoral artery?

Inguinal ligament.

8

Which arteries supply the posterior compartment of the thigh?

Perforating arteries (4).
-branch of profunda femoris

9

Which tendon do the perforating arteries pierce to enter the back of the thigh?

Adductor magnus.

10

Which artery supplies the medial compartment of the thigh?

Obturator artery.
-branch of internal iliac

11

How does the abdominal aorta give rise to the femoral arteries?

Abdominal aorta
>> common iliac arteries
>> internal and external iliac arteries.

Femoral artery = continuation of external iliac artery.

12

What happens to the femoral artery at the knee?

-Passes from the anterior compartment to enter the popliteal fossa.
-Becomes popliteal artery.

13

When is the popliteal artery best palpated?

When the knee is flexed.

14

Where is the genicular anastomosis?

At the front/side of the knee.

15

What is the genicular anastomosis composed of?

5 genicular branches of the popliteal arteries.
(sup lat, sup med, middle, inf lat, inf med)

16

What is the function of the genicular anastomosis?

Maintains blood supply to leg during knee flexion.
-popliteal artery may be obstructed

17

What are the main arteries of the leg (below knee)? (3)

-Anterior tibial artery
-Posterior tibial artery
-Fibular artery

18

Which artery supplies the anterior compartment of the leg?

Anterior tibial artery.
-terminal branch of popliteal artery

19

Which artery supplies the posterior compartment of the leg?

Posterior tibial artery.
-terminal branch of popliteal artery

20

Which artery supplies the lateral compartment of the leg?

Fibular artery.
-branch of post tibial artery

21

Which arteries are terminal branch of the popliteal artery? (2)

Posterior and anterior tibial arteries.

22

What are the main arteries in the foot? (2)

-Dorsalis pedis artery
-Med & lat plantar arteries
(-Deep plantar arch)

23

Which artery supplies the dorsal aspect of the foot?

Dorsalis pedis artery.
-continuation of ant tibial artery

24

Which arteries supply the plantar aspect of the foot(sole)?

Medial and lateral planter arteries.
-bifurcation of posterior tibial artery

25

What is the (deep) plantar arch composed of?

Anastomosis of deep plantar branch of dorsalis pedis artery and lateral plantar artery.

26

What proportion of the population have a superficial plantar arch?

5%.

27

What does the posterior tibial artery bifurcate into?

Medial and lateral plantar arteries.

28

Which arteries are often palpated? (4)

-Femoral artery
-Popliteal artery
-Posterior tibial artery
-Dorsalis pedis artery

29

Where is the femoral artery palpated?

In the groin.
-generally superficial and easy to palpate

30

Where is the popliteal artery palpated?

Deep in the popliteal fossa, against the femur.
-best when knee flexed