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The patellar tendonConnector Front of knee; links kneecap to shinbone., also called the patellar ligament, is a strong, flat band of connective tissue. It connects the patellaKneecap; small triangular bone embedded in quadriceps tendon; protects knee joint. (kneecap) to the tibial tuberosityRough bump below kneecap on anterior surface for patellar ligament attachment. on the anteriorThe front of the body or toward the front when standing in the anatomical position. surface of the tibiaShinbone; large, weight-bearing medial bone of the lower leg.. It is often referred to as a tendon because it connects muscle to bone. However, it changes classification once it extends from the patella to another bone. At that point, it technically becomes a ligament. It is a continuation of the quadriceps tendonConnector Above patella; connects thigh muscles to kneecap., which connects the quadriceps muscles to the patella.
Functionally, the patellar tendon is a critical part of the knee extension mechanism. When the quadriceps muscles contract, they transmit force through the quadriceps tendon. The force also passes through the patella and patellar tendon. This sequence extends the leg at the knee joint. This action is essential for walking, kicking, jumping, and standing up. Because it endures high stress during these movements, the patellar tendon can become inflamed. It may also get damaged. This can lead to conditions like patellar tendinitis (commonly known as “jumper’s knee”). In severe cases, it may even cause a tendon rupture.

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List of terms
- patellar tendon
- patella
- tibial tuberosity
- anterior
- tibia
- quadriceps tendon