The patella is commonly referred to as the kneecap. It is a small, freestanding, bone that rests between the femur thighbone and tibia shinbone. The femur has a dedicated groove along which the kneecap slides. As a form of protection, both bones also contain cartilage — strong, flexible tissue — in the areas near the patella. The patella plural: patellae is the largest sesamoid bone in the human body. It lies within the quadriceps tendon/patellar tendon and forms part of the knee joint and extensor mechanism of the knee. Gross anatomy Osteology The patella is tr. A patellar fracture is a break in the patella, or kneecap, the small bone that sits at the front of your knee. Because the patella acts as a shield for your knee joint, it is vulnerable to fracture if you fall directly onto your knee or hit it against the dashboard in a vehicle collision. 19/10/2019 · Patella anatomy video with diagram - Hello, everyone. In this anatomy lesson, I'm going to cover the anatomy of the patella bone, better known as the kneecap. This bone is part of the appendicular skeleton, and anatomists classify this bone as a sesamoid bone. In this video, I'll be looking at the main characteristics of the patella. A luxating patella is also called a “knee trick.” Where is the Patella Located. The almond-shaped patella rests in a groove of the end of the thigh bone the femur. When the patella is luxating, the only way to get it back in its normal position is through the quadriceps muscles in the.
25/04/2015 · The patella is an uncommon location for cancerous occurrence and development. The majority of tumors of the patella are benign, with a significant incidence of giant cell tumors and chondroblastoma. With the development of modern diagnostic technologies, there appear however many other histological. The patella, also known as the kneecap, is a flat, circular-triangular bone which articulates with the femur thigh bone and covers and protects the anterior articular surface of the knee joint. The patella is found in many tetrapods, such as mice, cats and birds, but not in whales, or most reptiles.
Structurally, the femur is a long bone, meaning its length is greater than its width, while the patella, a sesamoid bone, is small and round. Functionally, the femur acts as a lever, while the patella protects the patellar tendon from compressive forces. Chondromalacia patellae refers to softening and degeneration of the articular hyaline cartilage of the patella and is a frequent cause of anterior knee pain. Epidemiology Tends to occur in young adults. There is a recognized female predilection. The patella is also a form of sesamoid bone in the horse. Although many carnivores have radial sesamoid bones, the giant panda and red panda independently evolved to have an enlarged radial sesamoid bone. This evolution has caused the two species to diverge from other carnivores. The red.
Bone may also be affected by cancers in other parts of the body. Cancers in other parts of the body may release parathyroid hormone or parathyroid hormone-related peptide. This increases bone reabsorption, and can lead to bone fractures. Bone tissue that is destroyed or altered as a result of cancers is distorted, weakened, and more prone to. Normal variant accessory ossification center at the inferior pole of the patella. A focus of bone at the lower pole of the patella may represent a normal variant, a patellar sleeve fracture acute osteocartilaginous avulsion of the lower pole of the patella, Sinding-Larsen-Johansson disease or patellar tendinopathy jumper’s knee.
Patella alta is a condition under which patella gets elevated in relation to that of the femur bone, from its normal position. Patella alta is also known as ‘High Riding Patella’. It can also be described as unusual development of knee cap above and out of the joint. Know the causes, symptoms, treatment and diagnosis of Patella Alta. Structurally, the femur is a long bone, meaning its length is greater than its width, while the patella, a sesamoid bone, is small and round. Functionally, the femur acts as a rigid bar for movement, while the patella protects the patellar tendon from excessive forces. Read about chondromalacia patella patellofemoral syndrome treatment, diagnosis, symptoms knee pain, and causes. When the cartilage under the kneecap softens, this is called chondromalacia patella.
18/02/2010 · Treatment of articular cartilage lesions in the knee remains a challenge for the practising orthopaedic surgeon. A wide range of options are currently practised, ranging from conservative measures through various types of operations and, recently, use of growth factors and emerging gene therapy techniques. Learn term:sesamoidbone = unique, irregular bones; patella with free interactive flashcards. Choose from 64 different sets of term:sesamoidbone = unique, irregular bones; patella flashcards on Quizlet. A.The sternum is an example of a flat bone. B. Irregular bones include the vertebrae and hip bones. C.Long bones include all limb bones except the patella. D.Sesamoid bones form within certain tendons. This is false; long bones include all limb bones except the patella, tarsals and carpals.
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