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 is an organ system that allows blood and lymph to transport oxygen, carbon dioxide, nutrients, white blood cells, metabolites, hormones and many more to and from different tissues in the body helping to maintain homeostasis.he heart's main function is to pump blood, making it the  functional core of the circulatory system. Incoming,  deoxygenated blood is pumped through the right side of the h â¦ eart  and to the lungs, where the carbon dioxide is replaced with fresh  oxygen.