- A Aorta B Diffusion C Alveoli Used Twice D Pulmonary Arteries E Oxygen F Carbon Dioxide G Vena Cava H Blood Ca 1 (352.88 KiB) Viewed 22 times
A. Aorta B. Diffusion C. Alveoli (used twice) D. Pulmonary arteries E. Oxygen F. Carbon dioxide G. Vena Cava H. Blood capillaries (used twice) 1. Pulmonary veins All gas exchanges are made by as substances pass from high to low concentrations. After inhalation, oxygen passes from an area of high concentration within the b. into an area of low concentration within the c. Conversely, Carbon dioxide will pass from an area of high concentration within the d. into an area of low concentration within the e. ___ where it will then be exhaled. Blood is continuously circulated towards the lungs to be oxygenated. Oxygen poor blood is carried from the right ventricle to the lungs via the f. ___ while oxygen rich blood is returned to the left atrium via the 8 From here, it will be pumped to the left ventricle and eventually throughout the body via the h.___. As the vessels branch into capillaries, they will give off - i. to the cells and pick up j. _ causing the blood to become oxygen poor. The vessels will merge to form larger veins until they join to form the k. that will return oxygen poor blood to the right atrium. 8. What 2 areas of the brain control the rate of breathing? 9. Breathing rate is mostly controlled by the blood concentration of which gas? 10. Why does breathing into a paper bag help during hyperventilation?