Definition/Description. Trapezius Myalgia is chronic pain of the upper trapezius muscle, most frequent is neck pain. It is a complex and multifactorial condition. Musculoskeletal pain is often intensifying by mental and social stress at home or work.
A hadron, in particle physics, is any subatomic (smaller than the atom) particle or antiparticle which is made of quarks. Quarks are fundamental particles which among other properties have an electrical charge and a name (e.g. 'up', 'down', 'strange'). The electrical charge of a single quark is always a fraction (e.g. 2/3).
Androgens are a group of chemically related sex steroid hormones. Steroids are a special kind of fat molecule with a four-ringed, carbon atom backbone or core, like their cholesterol predecessor. CAPTION: A series of chemical changes turns cholesterol into androgen hormones.he weaker androgens androstenedione and dehydroepiandrosterone (DHEA) occur in small amounts in all vertebrates. Although 11-ketotestosterone is a weak androgen in four-legged vertebrates, it is the most potent variety in bony fishes and sharks.