tenâ¢or /ËtÉnÉ/USA pronunciation n. the course of meaning that runs through something written or spoken; drift:[countable]The tenor of the meeting was one of tenseness. continuous course or movement:[countable]nothing to disturb the tenor of our lives. Music and Dance [uncountable] the adult male voice between the bass and the alto.
The pulmonary artery carries deoxygenated blood from the heart to the lungs and is the only artery in the body that carries deoxygenated blood. The pulmonary vein carries oxygenated blood from the lungs to the heart, and it is the only vein that carries oxygen-rich blood.
The circulatory system consists of the heart, blood, and blood vessels, which transport nutrients and oxygen to all cells to keep the body in proper balance. The circulatory system is responsible for moving blood, nutrients, and gases to and from cells to keep the body in proper balance. The important components of the circulatory system have different functions. The blood vessels transport blood to and from the heart, the heart pumps oxygenated blood to the body, and the oxygen, gases, and nutrients exchange in the capillaries. Anything that affects the integrity of the tubing can impair the health of the circulatory system.