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The piriformis muscle (from Latin piriformis 'pear-shaped') is a flat, pyramidally-shaped muscle in the gluteal region of the lower limbs. It is one of the six muscles in the lateral rotator group. The piriformis muscle has its origin upon the front surface of the sacrum, and inserts onto the greater trochanter of the femur. Depending upon the ...
Gowers's sign is a medical sign that indicates weakness of the proximal muscles, namely those of the lower limb. The sign describes a patient that has to use their hands and arms to "walk" up their own body from a squatting position due to lack of hip and thigh muscle strength. It is named after William Richard Gowers. [1] [2]
Lower limb, Thigh/Hip, Medial compartment (adductor muscles) inferior pubic ramus [12] tibia (pes anserinus) obturator artery: anterior branch of obturator nerve [12] adducts hip, flexes hip, medially rotates knee [12] gluteus medius, gluteus minimus: 2 1 pectineus: Lower limb, Thigh/Hip, Medial compartment (adductor muscles) superior pubic ...
Pages in category "Muscles of the lower limb" The following 62 pages are in this category, out of 62 total. This list may not reflect recent changes. A.
Muscle weakness can also be classified as either "proximal" or "distal" based on the location of the muscles that it affects. Proximal muscle weakness affects muscles closest to the body's midline, while distal muscle weakness affects muscles further out on the limbs. Proximal muscle weakness can be seen in Cushing's syndrome [18] and ...
The three tendons, from front to back, that conjoin to form the pes anserinus come from the sartorius muscle, the gracilis muscle, and the semitendinosus muscle. [1] [2] It inserts onto the proximal anteromedial surface of the tibia. [2] The pes anserinus is around 5 cm below the medial tibial joint line. [2]
The origin of a muscle is the bone, typically proximal, which has greater mass and is more stable during a contraction than a muscle's insertion. [14] For example, with the latissimus dorsi muscle, the origin site is the torso, and the insertion is the arm. When this muscle contracts, normally the arm moves due to having less mass than the torso.
Muscle strength declines slowly, at a rate of approximately 2% per year based on quantitative muscle assessment. [11] [12] Muscle weakness often begins in proximal muscles, with most patients first noticing weakness in their lower limbs. [3] [13] Tremor, fasciculations, and cramps are common early symptoms of SBMA.