Patellar Region Flashcards
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Questions and Answers

What structures are shown in the diagram of the anterior patellar region?

Quadriceps, IT tract, lateral collateral ligament, medial collateral ligament, patellar tendon, pes anserinus (semitendinosus, gracilis, and sartorius)

What structures are shown in the diagram of the posterior patellar region?

Semimembranosus tendon, oblique popliteal ligament, popliteus

What is the largest synovial joint capsule in the body?

At the knee joint

What are the functions of the medial and lateral collateral ligaments?

<p>They prevent varus-valgus strain and keep the knee joint in the frontal plane.</p> Signup and view all the answers

What can happen if the IT tract gets really tight?

<p>It can pull the patella out laterally and cause knee pain.</p> Signup and view all the answers

What joints are referenced when discussing OA in relation to the patella?

<p>Tibial-femoral joint and patellofemoral joint</p> Signup and view all the answers

What does pes anserinus mean?

<p>Goose foot</p> Signup and view all the answers

What are the three tendons of the pes anserinus?

<p>Semitendinosus, gracilis, sartorius</p> Signup and view all the answers

What role does the popliteus play in knee joint function?

<p>It laterally rotates the femur on the tibia to unlock the knee joint and allow flexion.</p> Signup and view all the answers

The stability of the knee joint depends solely on the ligaments connecting the femur and tibia.

<p>False</p> Signup and view all the answers

Study Notes

Anterior Patellar Region

  • Diagram includes quadriceps, IT tract, lateral collateral ligament, medial collateral ligament, patellar tendon, and pes anserinus (semimembranosus, gracilis, and sartorius).

Posterior Patellar Region

  • Diagram features semimembranosus tendon, oblique popliteal ligament, and popliteus muscle.

Knee Joint Capsule

  • Largest synovial joint capsule in the body located at the knee joint.

Collateral Ligaments

  • Medial and lateral collateral ligaments prevent varus and valgus strain, maintaining knee joint stability in the frontal plane.

Iliotibial (IT) Tract

  • Tight IT band can exert lateral tension on the patella, leading to knee pain.
  • IT band is not a muscle and is difficult to stretch; runners often roll out their quads to alleviate tightness.

Tibial-Femoral and Patellofemoral Joints

  • Osteoarthritis (OA) mainly affects the tibial-femoral joint; problems arise if the patella doesn't glide smoothly over the femur.
  • Patella is embedded within the quadriceps tendon, with the patellar tendon functioning as a ligament due to its bone-to-bone connection.
  • Patella increases the mechanical advantage of the quadriceps.

Pes Anserinus

  • Location where semitendinosus, gracilis, and sartorius tendons insert; known as "goose foot."
  • Contains a major bursa that separates bone from tendons; inflammation can cause tightness on the medial side of the knee.

Knee Joint Mechanics

  • Knee primarily allows flexion and extension, but also permits some rotation.
  • Medial and lateral hamstrings facilitate this rotation; popliteus muscle laterally rotates the femur on the tibia to unlock the knee for flexion.

Knee Joint Stability

  • Depends on strength and action of surrounding muscles, especially the quadriceps’ medial and lateral parts.
  • Stability also relies on ligaments connecting the femur and tibia.

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Description

Test your knowledge of the patellar region with these flashcards. Each card focuses on important structures, including ligaments and tendons associated with the anterior and posterior aspects of the knee. Perfect for anatomy students looking to enhance their understanding of this critical area.

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