What is the maximum number of molecules of oxygen that can bind to hemoglobin? - 4 ANSWER>> The lungs are in the thoracic cavity, but they are also in another cavity. What is the name of that Pleural cavity other cavity? - ANSWER>> When oxygen passes from the lungs into the circulatory system as a gas, how many cells does it >>2, Alveoli and Capillary have to pass through to be in the circulatory system? - ANSWER The excretory system uses oxygen because oxygen diffuses more rapidly into the excretory False system because it contains water in the urine. - ANSWER>> In the proximal convoluted tubule useful molecules are collected and brought back into the circulatory system such as glucose and amino acids, but not the toxic materials. - >>True ANSWER Blood pressure is the force that drives molecules out of the glomerulus into the Bowman's True capsule. - ANSWER>> Blood pressure drives red blood cells and plasma proteins out of the glomerulus. - False ANSWER>> There is a reserve of oxygen in the muscles held by __________________. - Myoglobin ANSWER>> When you inhale which set of muscles uses the least amount of ATP and triggers the Diaphragm parasympathetic nervous