Unit 8 The cardiovascular system cover the contents of the blood, circulation, clotting and the different circulatory systems. The heart, including the different blood vessels and how the blood becomes oxygenated in the lungs. I have divided this system into three sections and bite sized chunks for you and would be really interested in your feed back at the end of it with any suggestions.
Unit 9 Respiratory
This unit covers the respiratory system, all the structures involved in breathing and how this occurs in the body as well as the diseases and disorders which effect it.