The piriformis is the name of a muscle that extends between the sacrum and the femoral head, the greater trochanter. It is a small muscle that sits deep under the large gluteal muscles and is involved in external rotation, extension and stretching of the hip joint.
The ear can be divided into three parts, the outer, middle and inner ear. The outer ear comprises the visible auricle and the ear canal, up to the eardrum. The middle ear is a cavity inside the eardrum and contains the three ossicles, the hammer, the anvil and the stirrup. Sound waves cause the eardrum to move and this movement is transmitted to the ossicles.
In the area around the buttock and hip there are many muscles and ligaments, to stabilize the pelvis and hip joint and create power and thrust forward. The gluteal muscles consist of several large muscles.
The heel has the function of a shock-absorbing cushion. The heel bone is the largest bone in the foot. Under the calcaneus bone is shock-absorbing fascia that acts as a resilient cushion. When you walk or run, you land on the heel, which then distributes the pressure to reduce the load on the joints upwards, in the ankle, knee, hip and back.
Computer mouse fatigue is not a specific diagnosis but a collective name for problems that usually come from the forearm and hand but also from other parts such as the upper arm, neck, shoulders. The name computer mouse fatigue comes from the fact that the problems are common when working at a computer and handling the mouse, which causes a poor working position that in turn causes pain from different parts of the arm.
A muscle cramp means that the muscle suddenly and involuntarily contracts, it tightens, and it hurts. A calf cramp is also called a tendon pull because the muscle pulls on the tendon. Calf cramps are common and although they are very painful and feel like the muscle is going to break, they are not dangerous.
Impingement or entrapment syndrome, as it is also known, is when tissues become squeezed together near a joint, causing pain during certain movements. When the tissues are squeezed and pressure is increased, pain results.
The joints of the fingers are made up of two finger bones, called phalanges, which meet in a joint to allow the fingers to move. The articular surfaces of the two bones are covered with articular cartilage to, among other things, reduce friction between the bone ends so that it slides more easily. The articular cartilage also protects the bone surfaces.
In the absence of direct trauma to the knee, knee pain is most commonly a symptom of a dysfunctional joint. It may be overloaded due to an imbalance in the pelvis and back. If the pelvis is not in balance but, for example, rotated forward on one side, the load and function of all joints will be affected. The knee joint, which is a large joint with a lot of fascia structures, and which takes so much weight, is then particularly vulnerable.
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