What is the structure that directs air to one (each) lobe of the lung called? What is the tissue type for the following structure of the heart? Pulmonary trunk Which barrier(s) must \rm{O}_{2} and \rm{CO}_{2} cross to pass between air and blood insi...
State True or False: When alveolar pressure is equal to atmospheric pressure, air flow into the lungs. Gas exchange in the lungs depends on diffusion. True False The mediastinal and pleural cavities are located within the thoracic cavity. Is the statement ...