Ball and socket joint

Labrum is a protective disk of fibrocartilage that surrounds and deepens the cavity of the Glenoid. The labrum allows for full range of motion, stability, and cushioning in the shoulder. It is attached to the edge of the shoulder socket and supports the ball of the joint -or the head of the arm bone, known as the humerus- in order to stay in place. When the fibrocartilage of the labrum is torn, it is considered a labral tear. There are three common labral tears; Posterior labral tears, Superior…

The human body contains a bunch of different systems, and it has many divisions within the systems. Organs, tissues, bones, joints, and cartilage are just a few things that are the genetic makeup of the actually human skeletal system. The human skeletal system is very diverse but unique at the same time. Bones are responsible for playing a major role in how our body is made up and functions. A bone is a rigid organ in which it contains living and evolving tissue that has various particular…

bones, joints, movement types and muscles used during a range of sporting activities: Example 1 – Andy Murray tennis serve. The Andy Murray serve begins with him lining up at a 45 degree angle to the baseline. His legs are a little more than body width apart with the left foot about 30 degrees off the line. This stance means that he will be using a big turn of the whole body to assist in providing some of the power to his serve. His arms are extended out in front. His left hand holds the ball…

Example 1 – Cristiano Ronaldo Football strike: Bones and Joints: Kicking a football uses all of the bones and joints in your lower body. The tarsals, metatarsals and phalanges of your foot provide the contact surface that strikes the ball. The tibia and tarsals form your ankle joint, which must stay slightly flexed but rigid when you kick so that no power is lost. Your knee joint, consisting of the tibia and femur, extends as your thigh muscles contract and your hip, which is made up of your…

the hip is either flexed, extended, abducted or adducted. Additionally, repeated stress on the joint has resulted in bony calcification around the acetabular fossa (Wolff’s law), limiting the motion and increasing the likelihood of a more serious hip injury. Doctors have also noted a slight varus alignment at the knees joint as a potential contributing factor. The hip consists of a ball-n-socket joint in which the convex head of the femur sits in the concave acetabular fossa of the os coxa.…

replacement surgery the patient’s arthritic joint surfaces are replaced with a plastic socket and smooth metal ball with an attached stem. These mechanisms are available in a variety of sizes and may be cemented or ‘press fit’ into the patient’s bone. The ‘press fit’ technique is utilized when the patient’s humeral bone is solid; however, if this bone is soft, the humeral component may be implanted using bone cement. In the majority of cases, a plastic socket (glenoid) is implanted using bone…

osteoporosis, or cancer can affect the bone so much so that the bone weakens from loss of tissue making bones fragile enough to break even from standing and twisting. However, a hip dislocation occurs when the femur bone is forced out of the ball and socket joint. To dislocate a hip a fall from extreme heights may occur. The most common causes of hip dislocation include vehicle collisions. The signs and symptoms of a hip fracture may include: the inability to move after falling, bruising,…

Insight to Shoulder Surgery Shoulder is the most flexible joint in the human body. It enables you to place and rotate your arm in various positions. However, its flexibility is exactly what makes shoulder prone to instability and injury. Age is another important factor that may cause problems to the shoulder. Such problems usually include disease, arthritis and other injuries. Since this is a very important part of your body, you certainly wish to treat is with care. So when your shoulder…

but to create movements. As simple as this sounds, without the intra-articular joints within our bodies, we couldn’t pursue the drive towards excellence. One of the most important joints within the human body is the hip. This joint provides the human body with the necessary stability and strength to perform the simple motion of walking. The joint is created by the connection of the femoral head into the acetabulum socket, and is reinforced by the byischiofemoral, tibiofemoral, and pubofemoral…

The knee is made up of four main things: bones, cartilage, ligaments, and tendons. The knee is a ball in socket and the elbow is a relatively simple hinge joint which only allows flexion and extension. The radius is smaller of the two forearm bones and sits on the outside of the joint.As spoken about before the cruciate ligaments are made up of two types of ligaments, the anterior and the posterior. They are often referred to the ‘crucial’ ligaments because it is important that the help the knee…