The heart is the organ that helps supply blood and oxygen to all parts of the body. Aqa a level biology heart disease flashcards quizlet. Selzers book includes information vital to anyone confronting heart problems and cardiac emergencies. In his thorough and thoughtful exploration of the new biology, sayer ji illuminates. Arteries supplying the heart become narrowed and the blood supply to cardiac tissues is reduced. Understanding heart disease by arthur selzer university of california press, 1992 written in clear, accessible language, this book presents a balanced picture of how heart diseases are recognized and managed. This is the build up of fatty material in the walls of arteries. The specification in this catalogue, including limitation price, format, extent, number of illustrations and month of publication, was as accurate.
Rob myers shows how to take control of the condition. The anatomy of the heart, its structures, and functions. Alevel human biology revision science section on cardiovascular disease. Heart has to work harder to force blood through narrowed vessels blood pressure increases. For example, of the 50 million americans who suffer from high blood pressure the leading contributor to heart disease only 35% know they have it. She has trained at the mayo clinic, in molecular biology, cardiology and echocardiography to develop an expertise which is translational in the approach towards valvular medicine. Heart anatomy focuses on the structure and function of the heart. Control of heart rate questions aqa ocr edexcel author. Cardiovascular disease covers a range of heart related problems see below for examples.
It is often the underlying cause that leads to heart disease. Risk factors associated with chd are diet, blood cholesterol, cigarette smoking and high blood pressure. Coronary heart disease is a major cause of death in the uk and much of the rest of the world. Aqa gce biology as award 1411 unit 1 the heart unit 1 biology and disease the heart practice exam questions. Heart failure is the end result of many diseases affecting the heart, but is most commonly associated with ischaemic heart disease, valvular heart disease, or high blood pressure. Rajamannan, md has been studying the cellular biology of valvular heart disease since 1987. Home a level and ib study tools biology health and disease infectious disease as biology health and disease infectious disease as biology 3. Disease may have a single cause for example, malaria or be multifactorial, such as heart disease. Less common causes include various cardiomyopathies. Learn vocabulary, terms, and more with flashcards, games, and other study tools.
Heart disease is responsible for more than 37% of all deaths and is the leading cause of death in people over 65. Unit 1 biology and disease the heart practice exam questions. Disease is a disorder or malfunction of the mind or body, which destroys good health. Alevel human biology revision science section on cardiovascular disease, its causes and effects. Aqa gce biology as award 1411 unit 1 the heart heart.
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