Knee Joint Flashcards by Courtney @Brainscape

Q

Bones of the Knee Joint

3 Separate articulations

A

Femoropatellar

2x Femorotibial

Modified hinge joint - Fibula does not articulate at the knee joint

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Q

Articular Surfaces in the Knee Joint

A

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Q

Capsule Attachments

Anteriorly

A

Fuses with quadriceps tendon, patella nad ligamentum patellae

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Q

Capsule Attachments

Posteriorly

A

Encloses intercondylar fossa of femur, and is oen posterior to the lateral condyle of the tibia for the popliteus muscle

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Q

Synovial Membrane Attachments

A

Medial and lateral alar folds cover the inner surface of fat pads on either side of the patellar ligament

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Q

Bursae around the Knee Joint

A

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Q

Ligaments at the Knee Joint

Extracapsular (3)

A

Oblique Popliteal

Arcuate Popliteal

Medial and Lateral Collateral

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Q

Ligaments at the Knee Joint

Intracapsular

A

Anterior and Posterior Cruciate

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Q

Popliteal Ligaments

Oblique Popliteal Ligament (Red)

A

Expansion of Semimembranosus tendon.

Reinforces posterior capsule

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Q

Popliteal Ligaments

Arcuate Ligament (Blue)

A

Thickening of capsule over popliteus

Strenghtens posterolateral joint capsule

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Q

Medial (Tibial) Collateral Ligament

A

Strong, flat thickening of capsule

Medial epicondyle of femur to the medial condyle and superior medial surface of the tibia

Deep fibres attach to medial meniscus

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Q

Lateral (Fibular) Collateral Ligament

A

Strong and cord-like

Lateral epicondyle of femur to lateral head of fibula

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Q

Cruciate Ligaments

A

Parts of these are taut in every joint position

Maintain contact between femoral and tibial articular surfaces when the knee is flexed

Wind around each other during medial rotation of the tibia

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Q

Anterior Cruciate Ligament

Attachments

A

Anterior intercondylar area of tibia to the medial side of the Lateral condyle of the femur

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Q

Anterior Cruciate Ligament

What band does what?

A

Anteromedial band limits flexion

Posterolateral band limits extension

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Q

Posterior Cruciate Ligament

Attachments

A

Posterior intercondylar area of the tibia to the lateral side of the medial condyle of the femur

Q

Posterior Cruciate Ligament

What band limits what?

A

Anterolateral band limits flexion

Posteromedial band limits extension

Q

Menisci

What are they?

A

Wedges of fibrocartilage which deepen the articular surface and are important in shock absorption

Q

Menisci

Medial Meniscus

A

C-shaped

Broad posteriorly

Firmly attached to TCL

Q

Menisci

Lateral Meniscus

A

Circular

Freely moveable

Attachment for popliteus

Q

Meniscal Attachments

A

Q

Blood Supply to the Knee

A