Crystal. When most people talk about bringing out the crystal, they are often referring to a type of glass that is made from silica, lead oxide, soda or potash, and other additives. Lead crystal is prized for its durability and decorative properties, even if it does not necessarily possess a crystalline structure.
What part of the brain controls breathing and heartbeat? The brain stem controls breathing and heart rate as well as blood pressure and alertness. Found at the top of the spinal column, the brain stem consists of three main parts, including the medulla oblongata, pons and midbrain. The medulla oblongata controls cardiac and respiratory rates.
Quick Answer. The brain stem and its individual components, the medulla, pons and midbrain, are in control of breathing and the respiratory system's various parts. The main section of the respiratory system responsible for breathing, or specifically inhalation, in the brain stem is the dorsal respiratory group, which is in the medulla. Continue Reading.