In this case, the damper is normally opened by the force of the spring but can be closed by the force of the motor. Removal of electrical power re-opens the damper. This style of damper is advantageous because it is fail safe; if the control to the damper fails, the damper opens and allows air to flow.
The adrenal glands, located on the top of each kidney, are responsible for releasing different hormones. Adrenal gland disorders occur when the adrenal glands produce too much or too little of these hormones.
The adrenal cortex also produces a hormone called aldosterone that is involved in regulating the amount of salt and water in your body. The inner part of the adrenal gland is called the adrenal medulla.The adrenal medulla produces hormones called catecholamines such as adrenaline and noradrenaline. Catecholamines play a role in the response to acute or sudden severe stress, for example during life threatening event.he adrenal cortex also produces a hormone called aldosterone that is involved in regulating the amount of salt and water in your body. The inner part of the adrenal gland is called the adrenal medulla.