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Extremities (2) > Unit 3- Popliteal Fossa > Flashcards

Unit 3- Popliteal Fossa Flashcards

1
Q

Superolateral boundary of the popliteal fossa

A

Biceps femoris

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2
Q

Superomedial popliteal fossa

A

Semimembranosus

Semitendinosus

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3
Q

Inferomedial boundary of politeal fossa

A

Medial head of gastrocnemius

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4
Q

Inferolateral border of the popliteal fossa

A

Lateral head of gastrocnemius

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5
Q

Posterior boundary of popliteal fossa

A

Skin and popliteal fascia

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6
Q

Anterior boundary of popliteal fossa

A

Popliteal surface of the femur

Medial and lateral supracondylar lines

Posterior capsule of the knee joint

Popliteal fascia covering the popliteal muscle forming the floor of the fossa

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7
Q

Contents of the popliteal fossa

A

Popliteal art and vein (with branches and tributaries)

Termination of the small saphenous vein

Tibial and common fibular nerve

Post cutaneous nerve of the thigh

Popliteal lymph nodes and vessels

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8
Q

Popliteal fossa contents are arranged—- superficial to deep

A

Superficial fascia

Nerves

Veins

Arteries

Joint capsule

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9
Q

Subcutaneous tissue overlying the fascia contains:

A

Fat, small saphenous vein and cutaneous nerves

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10
Q

Cutaneous nerve of the fascia

A

Post cutaneous nerve of the thigh

Medial cutaneous sural nerve

Lateral cutaneous sural nerve

Sural nerve

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11
Q

Deep fascia that forms a protective sheet overlying the neurovascular structures

A

Popliteal fascia

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12
Q

Popliteal fascia is continuous with the:

A

Fascia lata of the thigh and deep fascia of the leg

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13
Q

Popliteal fascia forms a loose retinaculum for:

A

The hamstring tendons as they cross the knee

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14
Q

What happens when the fascia is extended

A

It stretches taught and the semimembranosus moves lateral to cover the fossa’s contents

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15
Q

What is the popliteal artery a continuation of?

A

The femoral art

As it moves from the ant compartment of the thigh to the post compartment of the LEG

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16
Q

The popliteal art transversus the ____ ____ and divides into:

A

Popliteal fossa

Anterior and posterior tibial arteries at the inferior border of the fossa

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17
Q

What branches surround the joint capsule and ligaments?

A

5 genicular branches

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18
Q

Genicular arteries (5)

A

Superior lateral genicular

Superior medial genicular

Middle genicular art

Inf lateral genicular

Inf medial genicular

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19
Q

What artery is the major supply to knee ligaments and synovial joint capsule?

A

Middle genicular art

20
Q

What maintains flow around the knee during full flexion

A

Peri-genicular collateral circulation

21
Q

Review slides 11 and 12 for peri-articular anastomose

A

Slides 11 and 12

22
Q

Muscular popliteal branches go to the:

A

Hamstrings

Gastrocnemius

Soles

Plantaris

23
Q

Where is the popliteal vein formed?

A

At the distal end of the popliteal fossa

By a continuation of the post tibial vein

24
Q

The popliteal transversus the ____ with the _____ in a:

A

Fossa

Artery

Fibrous sheath

25
Q

After the fossa, the popliteal vein changes to the:

A

Femoral vein at the adductor hiatus

26
Q

Small saphenous vein passes from:

A

Posterior of the lateral malleolus
To the popliteal fossa where it pierces the fascia sheath to enter the popliteal vein (may enter the post tibial branch)

27
Q

Superficial popliteal lymph nodes are located where?

A

In the subcutaneous tissue

28
Q

Deep popliteal lymph nodes are located where?

A

Around the popliteal vessels

29
Q

Popliteal lymph nodes drain proximally to the:

A

Deep inguinal nodes

30
Q

Sciatic nerve splits at the:

A

Superior angle of the popliteal fossa

31
Q

Sciatic nerve splits to form the:

A

Tibial nerve

Common fibular nerve

32
Q

Tibial nerve is formed by:

A

Anterior divisions of the ant rami of L4-S3

33
Q

Which nerve is the medial, larger and more superficial branch of the sciatic nerve in the fossa?

A

Tibial nerve

34
Q

The tibial nerve ______ the fossa as it passes to the:

A

Bisects

Inferior angle of the fossa

35
Q

Tibial nerve supplies the:

A

Soles

Gastrocnemius

Plantaris

Popliteus

36
Q

Cutaneous branch of the tibial nerve

A

Medial sural cutaneous nerve

37
Q

The medial sural cutaneous nerve is joined by:

A

Sural communicating branch from the common fibular

38
Q

Sural nerve provides sensation from the:

A

Lateral side of the leg and ankle

39
Q

Common fibular nerve is formed by:

A

Posterior division of ant rami of L4-S2

40
Q

The common fibular nerve is the _____ and ______ branch of the sciatic nerve in the fossa

A

Lateral

Smaller

41
Q

Common fibular nerve follows the:

A

Medial border of the biceps femoris muscle and tendon

42
Q

The common fibular nerve patheway:

passes superficial to the:

A

Lateral head of the gastrocnemius

Passes over the post aspect of the head of the fibula

Then wraps around the fibular neck and descends anterior-medially forming terminal branches

43
Q

Terminal branches of the common fibular nerve

A

Superficial fibular nerve

Deep fibular nerve

44
Q

Superficial fibular nerve supplies:

A

Fibularis longus

Fibularis brevis

Skin of distal anterior leg and Dortmund of the foot

45
Q

Seep fibular nerve supplies the:

A

Tibialis anterior

Extensor hallucinate longus

Extensor digitorum longus

Muscles of dorsal of foot

46
Q

What supplies the skin over the popliteal fossa?

A

Posterior cutaneous nerve

Extremities (2) (28 decks)

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