Coronary arteries, lumen and ischaemia
Coronary arteries, lumen and ischaemia
The cardiovascular system is the heart and blood vessels, which transport oxygen, nutrients, hormones, carbon dioxide and other substances. Cardiovascular disease, or CVD, means disease of the heart or blood vessels.
Step-by-step lessons on Edexcel A A Level Biology Atherosclerosis, blood clotting and CVD. Each one builds up to exam-style questions. Build a strong foundation in cell biology and biochemistry early on, since later topics on genetics, ecology and physiology all draw on these core concepts.