Relier Pairs Topic 3 Respiratory, urinaryVersion en ligne Terms describing the components of the respiratory and urinary systems par Rick Roberts 1 glomerulus 2 glottis 3 respiratory tree 4 kidney 5 ciliated cells 6 urethra 7 urinary bladder 8 alveoli 9 ureter 10 respiratory zone one of two tubes leading from the kidneys to the urinary bladder tiny air sacs with thin walls located at the end of the bronchioles anywhere gas exchange takes place in the lungs, primarily in the alveoli two flaps of tissue that close together to prevent food from entering the conducting zone Bean-shaped organ one one side of the backbone in the lumbar region hollow, muscular sac that holds and stores urine tube leading from the urinary bladder to the outside of the body cells with hair-like organelles (cilia) on their membranes tiny ball of capillaries in the kidney collective term for bronchi due to their constant production of branches (bronchioles)