Popliteal Fossa Flashcards
POPLITEAL FOSSA
______-shaped depression in (anterior or posterior?) aspect of knee
•Transmits important vessels and nerves from thigh to leg or vice versa
Diamond
Posterior
BOUNDARIES OF POPLITEAL FOSSA •Superolateral border ➢\_\_\_\_\_\_\_ •Superomedial border ➢\_\_\_\_\_\_\_\_\_\_ •Inferolateral border ➢ \_\_\_\_\_ head of \_\_\_\_\_ •Inferomedial border \_\_\_\_\_ head of \_\_\_\_\_
biceps femoris
semimembranosus and *semitendinosus
lateral; gastrocnemius
Medial; gastrocnemius
BOUNDARIES OF POPLITEAL FOSSA
•Posteriorly/Roof
➢_____ and _____
•Anteriorly/Floor ➢\_\_\_\_\_\_ surface of \_\_\_\_ ➢Capsule of knee joint ➢\_\_\_\_\_\_\_\_ ligament ➢\_\_\_\_\_ fascia over \_\_\_\_\_\_
Skin and fascia
Popliteal; femur
Oblique popliteal
Popliteal; popliteus
Contents of the popliteal fossa •\_\_\_\_\_\_ artery and branches •\_\_\_\_\_\_ vein and tributaries •Termination of \_\_\_\_\_ vein •\_\_\_\_\_ and \_\_\_\_\_ nerves •\_\_\_\_\_\_\_\_\_\_ nerve of thigh •\_\_\_\_\_\_ lymph nodes and lymphatic vessels
Popliteal
Popliteal
small saphenous
Tibial and common fibular
Posterior cutaneous
popliteal
FASCIA OF THE POPLITEAL FOSSA Superficial fascia- the subcutaneous tissue overlying the popliteal fossa contains: •\_\_\_\_\_\_\_ vein •3 cutaneous nerves: 1.\_\_\_\_\_\_\_\_\_ nerve of thigh 2.\_\_\_\_\_\_\_\_ nerve 3.\_\_\_\_\_\_\_\_\_\_ nerve
Small saphenous
Posterior cutaneous
Medial sural cutaneous
Lateral sural cutaneous
Popliteal fascia
•Is a strong sheet of ____ fascia
•It is continuous superiorly with the _____ and inferiorly with the _______
deep
fascia lata
Popliteal fascia
It forms a:
•protective covering for neurovascular structures passing from the ____ to the ___ through the _____ fossa
•Relatively (loose or tight?) but functional retaining band (retinaculum) for the ____ tendon
thigh; leg
popliteal
Loose
hamstring
Popliteal fascia is rarely pierced by the small saphenous vein
T/F
F
It is often pierced by the small saphenous vein
Popliteal artery
•Continuation of _____ artery
femoral
Popliteal artery
Begins when femoral artery passes thru _____
adductor hiatus
Popliteal artery
Passes (superior or Inferior?) (Medially or laterally?) through popliteal fossa
•Terminates at (superior or inferior?) border of ____ by dividing into ______ and tarteries
Inferior
Laterally
inferior
popliteus
Deepest structure in popliteal fossa runs close to _______ of knee joint
articular capsule
BRANCHES OF POPLITEAL ARTERY
•___ genicular branches participates in the genicular anastomoses:
5
BRANCHES OF POPLITEAL ARTERY
- ________ genicular artery
- _______ genicular artery
- ______ genicular artery
- _______ genicular artery
- _______ genicular artery
•Muscular branches-____,____,_____ and ____ muscles
Lateral superior
Medial superior
Middle
Lateral inferior
Medial inferior
hamstring; gastrocnemius
soleus and plantaris
THE POPLITEAL VEIN
•Formed at (proximal or distal?) border of _____ by union of ____ and _______ veins
•Throughout its course vein lies (superficial or deep?) and runs close to artery in same fibrous sheath
Distal
popliteus
anterior and posterior tibial
Superficial
THE POPLITEAL VEIN
At first, vein lies (anterior or posterior?) (medial or lateral?) to artery and (medial or lateral?) to tibial nerve
•More superiorly, vein lies _____ to artery and ______ to tibial nerve
Posterior
Medial
Lateral
posterior; anterior
Popliteal vein has few valves
T/F
F
has several valves
THE POPLITEAL VEIN
•Terminates at ______ becomes ____ vein
adductor hiatus
femoral
SMALL SAPHENOUS VEIN
- Passes from (anterior or posterior?) aspect of lateral malleolus to _____
- Here, it pierces ______ fascia and enters ____ vein
Posterior ; popliteal fossa
deep popliteal
popliteal
TIBIAL NERVE
•Is the (Medial or lateral?) and (smaller or larger?) branch of sciatic nerve
Medial
Larger
TIBIAL NERVE
Branches:
- Muscular branches to _____,_____,_____,_____
- ___________ nerve
Soleus, gastrocnemius, plantaris and popliteus.
Medial sural cutaneous
Most superficial of the neurovascular bundle in the popliteal fossa is????
Tibial nerve
_________ Bisects popliteal fossa as it passes from superior to inferior angle
Tibial nerve
Medial sural cutaneous nerve is joined by the sural communicating branch of the _______ nerve to form the ____ nerve
common fibular
sural
sural nerve supplies ——— side of leg and ankle
lateral
COMMON FIBULAR NERVE
•(medial or Lateral?) (smaller or larger?) terminal branch of sciatic nerve
Lateral
Smaller
COMMON FIBULAR NERVE
- Begins at (superior or Inferior ?) angle of popliteal fossa
- Closely follows medial border of _________ and its tendon
- Exits fossa by passing (superficial or deep?) to ____ head of ______
- Then over posterior aspect of head of ____
- Winds around ___ of ____ then divides into terminal branches
Superior
biceps femoris
Superficial
lateral
gastrocnemius
fibula
neck of fibula
POSTERIOR CUTANEOUS NERVE OF THIGH
•The most inferior branches supply the skin that overlies the ______
•The nerve traverses most of the length of the _____ compartment of the thigh deep to the _____
•Only its ____ branches enter the subcutaneous tissue as _____ nerves
popliteal fossa
posterior
fascia lata
terminal ; cutaneous
LYMPH NODES
•2 groups:
1.Superficial popliteal lymph nodes
•Usually (small or large?) in size and lie in popliteal __
•A lymph node lies in termination of _____ vein and receives lymph accompanying lymphatic vessels
2.Deep popliteal lymph nodes
•Afferent lymph vessels reach popliteal lymph nodes from ___ joint and lymphatic vessels accompanying arteries of leg
•Efferent lymph vessels leave popliteal lymph nodes along the femoral vessels to reach the _______ lymph nodes
Small; fat
small saphenous
Knee
Inguinal
CLINICAL ANATOMY
•Popliteal aneurysm- ____ of popliteal artery
dilation
Injury to the tibial nerve-
•paralysis of (flexor or extensor?) muscles in leg and intrinsic muscles in _____
•Inability to (plantar or dorsi ?) flex ankles or flex toes
•Loss of sensation on sole of foot
Flexor
Sole of foot
Plantar
