prickly pear, prickly pear cactus(noun) cacti having spiny flat joints and oval fruit that is edible in some species; often used as food for stock. Synonyms: prickly pear, prickly pear cactus. prickly pear(noun) round or pear-shaped spiny fruit of any of various prickly pear cacti.
The quadriceps and patellar tendons can be stretched and torn. Although anyone can injure these tendons, tears are more common among middle-aged people who play running or jumping sports. Falls, direct force to the front of the knee, and landing awkwardly from a jump are common causes of knee tendon injuries.
The hamstring tendons make up the borders of the space behind the knee; the muscles are involved in knee flexion and hip extension.In quadrupeds, the hamstring is the single large tendon found behind the knee or comparable area.he three 'true' hamstrings cross both the hip and the knee joint and are therefore involved in knee flexion and hip extension. The short head of the biceps femoris crosses only one joint (knee) and is therefore not involved in hip extension.