Popliteal Fossa Flashcards
(52 cards)
1
Q
Popliteal fossa
A
- Diamond-shaped area posterior to knee
- Fat-filled, confined compartment
2
Q
Popliteal fossa boundaries
A
- Superolateral: biceps femoris
- Superomedial: semimembranosus/semitendinosus
- Inferolateral: lateral head of gastrocnemius, plantaris muscle
- Inferomedial: medial head of gastrocnemius
- Roof: skin, superficial fascia and deep fascia (popliteal fascia)
- Floor: popliteal surface of femur, investing fascia over popliteus, knee joint capsule and oblique popliteal ligament
3
Q
Popliteal fossa SUPEROLATERAL boundary
A
- Biceps femoris
4
Q
Popliteal fossa SUPEROMEDIAL boundary
A
- Semimembranosus
- Semitendinosus
5
Q
Popliteal fossa INFEROLATERAL boundary
A
- Lateral head of gastrocnemius
- Plantaris muscle
6
Q
Popliteal fossa INFEROMEDIAL boundary
A
- Medial head of gastrocnemius
7
Q
Popliteal fossa ROOF
A
- Skin
- Superficial fascia
- Deep fascia (popliteal fascia)
8
Q
Popliteal fossa FLOOR
A
- Popliteal surface of femur
- Investing fascia over popliteus
- Knee joint capsule
- Oblique popliteal ligament
9
Q
Polpiteal fossa content
A
- Small saphenous vein
- Popliteal artery and branches
- Popliteal vein and tributaries
- Tibial nerve
- Medial sural cutaneous
- Common fibular nerves
- Posterior cutaneous nerve of thigh
- Popliteal lymph nodes
10
Q
Common fibular nerves (content of popliteal fossa)
A
- Lateral sural cutaneous nerve
- Sural communicating (fibular communicating)
11
Q
Deep to superficial popliteal fossa content
A
- Popliteal artery
- Popliteal vein
- Nerves
12
Q
Medial to lateral politeal fossa content
A
- Popliteal artery
- Popliteal vein
- Tibial nerve & common fibular nerve
- Sciatic nerve
13
Q
Tibial nerve (L4-S3) located in
A
- In the superficial fascia
14
Q
Common fibular nerve (L4-S2) pathway
A
- Follows biceps femoris & tendon
- Passes around fibular neck
15
Q
Tibial nerve (L4-S3) gives off
A
- Medial sural cutaneous (S1,2)
16
Q
Common fibular nerve gives off
A
- Lateral sural cutaneous (L5-S2)
- Sural (fibular) communicating branch (S1,2)
17
Q
Lateral sural cutaneous (L5-S2) supplies
A
- Superior/lateral leg
18
Q
Sural (fibular) communicating branch (S1,2)
A
- Joins medial sural cutaneous
- Forms sural nerve (S1,2)
19
Q
Popliteal sciatic nerve block
A
- Blocks sciatic nerve superior pop fossa (or slightly above)
- Lateral or posterior approach
20
Q
Popliteal artery
A
- Continuation of femoral, deep in popliteal fossa
- Supplies knee joint and surrounding musculature
21
Q
Popliteal pulse
A
- Difficult to feel
- Easier more superior and medial to midline
22
Q
Popliteal artery pathway
A
- Passes into posterior leg compartment
- Deep through fibrous arch of soleus
23
Q
Branches of popliteal artery
A
- Superior medial/lateral genicular
- Sural arteries
- Inferior medial/lateral genicular
- Anterior/posterior tibial artery (terminal branches)
24
Q
Superior lateral genicular artery
A
- Passes deep to and biceps femoris
25
Superior medial genicular artery
- Passes deep to medial hamstring muscles/adductor magnus above medial femoral condyle
26
Sural arteries are muscular branches to
- Gastrocnemius
- Soleus
- Plantaris
27
Middle genicular artery
- Pierces oblique popliteal ligament
| - Supplies internal knee structures
28
Inferior lateral genicular artery
- Passes deep to gastrocnemius/plantaris
- Superficial to popliteus
- Passes around lateral tibial condyle
29
Inferior medial genicular artery
- Follows along superior border of popliteus
| - Toward medial tibial condyle
30
Anterior tibial artery (terminal branch of popliteal)
- Branches off popliteal artery near inferior border of popliteus
- Passes through superior opening of interosseous membrane
- Enters anterior compartment
31
Branches of anterior tibial artery
- Posterior tibial recurrent
| - Anterior tibial recurrent
32
Posterior tibial recurrent artery
- Branches off before entering the anterior compartment
- Passes deep to popliteus
- Joins with genicular anastomosis
33
Anterior tibial recurrent artery
- Branches right after passing through superior opening in the interosseous membrane
- Passes superiorly to anastomose with inferior genicular arteries
34
Posterior tibial artery (terminal branch of popliteal)
- Deep posterior compartment
35
Branches of posterior tibial artery
- Circumflex fibular
| - Fibular artery
36
Circumflex fibular artery
- Wraps around neck of fibula
| - Joins with inferior genicular arteries
37
Fibular artery
- Descends posterior to fibula
38
Anterior/posterior tibial venous drainage
- Anterior/posterior tibial vein > Popliteal vein > Femoral vein
39
Superior lateral genicular artery anastomoses with
- Superior medial genicular
- Inferior lateral genicular
- Descending branch of lateral femoral circumflex
40
Superior medial genicular artery anastomoses with
- Superior lateral genicular
- Inferior medial genicular
- Descending genicular
41
Inferior lateral genicular artery
| anastamoses with
- Inferior medial genicular
- Superior lateral
- Circumflex fibular
- Anterior/posterior tibial recurrent
42
Inferior medial genicular artery
| anastomoses with
- Inferior lateral genicular
- Superior medial genicular
- Anterior tibial recurrent
- Descending genicular (saphenous branch) arteries
43
Inferior medial genicular artery
| supplies
- Popliteus muscle
44
Anterior tibial recurrent
| anastomoses with
- Inferor medial/lateral genicular arteries
| - Circumflex fibular
45
Posterior tibial recurrent
| anastomoses with
- Inferior genicular arteries
46
Circumflex fibular artery
| anastomoses with
- Inferior lateral genicular
| - Anterior tibial reccurent
47
Descending genicular (highest genicular) artery
- Last branch off of femoral artery
48
Descending genicular (highest genicular) branches
- Saphenous artery
| - Articular branch
49
Saphenous artery
- Supplies medial knee
- Joins genicular anastomosis
- Anastomoses with inferior medial genicular artery
50
Descending genicular artery anastomoses with
- Inferior medial genicular artery
51
Articular branch
- Supplies knee joint
| - Joins genicular anastomosis
52
Descending branch of lateral femoral circumflex anastomoses with
- Superior lateral genicular artery
