Respiration is a series of reactions in which energy is released from glucose glucose: A simple sugar made by the body from food, which is used by cells to make energy in respiration. Aerobic respiration is the form of respiration which uses oxygen. It can be summarised by this equation:
perturbation in Science. A small change in a physical system, most often in a physical system at equilibrium that is disturbed from the outside. Variation in a designated orbit, as of a planet, that results from the influence of one or more external bodies.
Buttress or buttressed periosteal reaction refers to beaklike solid periosteal new bone formation that can be seen with benign and malignant lesions. It is the interrupted version of the solid periosteal reaction.