Myalgia is not a medical disorder or disease but more of a symptom of an existing underlying condition. Myalgia is known as a muscle ache or muscle pain. It is a common condition that almost everyone has had at one time or another.
Gyri and Sulci. Gyri and Sulci are compliments of each other in the sense that they help create each other. The gyri (single gyrus) are the actual pieces of the brain's cerebrum which have been smooshed and curved into fine folds so that more surface area is available on the cerebrum. Sulci are the shallow grooves which are formed between these smooshed folds.
A gyroscope (from Ancient Greek Î³á¿¦ÏÎ¿Ï gÃ»ros, circle and ÏÎºÎ¿ÏÎ­Ï skopÃ©Å, to look) is a spinning wheel or disc in which the axis of rotation is free to assume any orientation by itself. When rotating, the orientation of this axis is unaffected by tilting or rotation of the mounting, according to the conservation of angular momentum.