![]() Quality Assured Category: Science Publisher: Biotechnology and Biological Sciences Research Council (BBSRC) - UKRI Suggest ways that a person could help reduce their risk of having a heart attack.Describe blood clotting and how this helps to prevent disease.How does the pressure change in each of the chambers during one heartbeat?.Describe the sequence of events in a cardiac cycle (heartbeat).Explain why humans have a double circulatory system.Compare and contrast the structures and functions of arteries, veins and capillaries.Describe the role of each of the components in the blood.Why do these materials need to be carried?.What materials does blood transport throughout the body.Different students could be asked to complete specific tasks to answer in class having worked through the website for homework, tasks could include: These sections could be used for independent learning/homework activities. ![]() In each section there is information and a brief self-test quiz. Prevention and treatment of cardiovascular disease.This interactive website has a number of sections which are relevant to this topic area of GCSE Biology, these include: Further information is provided in our Health and Safety guidance.ĪBPI interactive website *suitable for home teaching* eLibrary users are responsible for ensuring that any activity, including practical work, which they carry out is consistent with current regulations related to Health and Safety and that they carry an appropriate risk assessment. Do NOT follow suggestions which conflict with current advice from CLEAPSS, SSERC or recent safety guides. Whilst this list provides a source of information and ideas for experimental work, it is important to note that recommendations can date very quickly. The valves in the heart chambers are an important feature of the circulatory system so it is worth spending some time ensuring students appreciate the role that the valves play in the system, they should be a feature of any dissection. There os often a misconception that it is the vessel which supply the heart which are blocked It is important when discussing/demonstrating the structure of the heart (for example in dissections) that students are shown the coronary arteries that supply the cardiac muscle, so that they appreciate that it is the blockage of these arteries that can cause heart attacks. Asking students to give a two minute presentation on this (select different students at the start of different lessons), will help them articulate this Students often find it difficult to explain what is meant by double circulation, when delivering this topic ensure that students are able to clearly explain how blood is pumped to the lungs and body on each circuit and that it goes through the heart twice in each circuit. Students need to know the components of blood and be able to explain how red blood cells, white cells, platelets and plasma are adapted to their functions. They will need to explain how the structure of the heart and blood vessels are adapted to their functions. It is also important to manage your blood pressure and blood cholesterol level, and - if you are diabetic - to manage your diabetes.Students need to be able to describe the human circulatory system, including the relationship with the gaseous exchange system. You can lower your heart disease risk with regular exercise, maintaining a healthy weight, reducing stress, eating well and, if you are a smoker, quitting. The beat can be irregular, too fast or too slow.ĪRE YOU AT RISK? - Are you at risk of type 2 diabetes, heart disease or kidney disease? Use the Risk Checker to find out. ArrhythmiaĪrrhythmia occurs when the heart is not beating in the usual pattern. Heart valve disease occurs when the valves do not open or close properly, causing problems with blood flow. Heart failure occurs when the heart pumps less effectively, potentially causing tiredness, shortness of breath and sometimes swelling in the legs. Heart attackĪ heart attack occurs when a blockage in a coronary artery reduces the blood (and oxygen) supply to heart muscle. Coronary artery diseaseĬoronary artery disease occurs when the coronary arteries become clogged with fatty deposits. Discomfort can spread to the shoulder, neck or jaw. AnginaĪngina is chest pain caused when an area of heart muscle is not getting enough blood. ![]() There are a number of conditions or symptoms related to the heart. Conditions or symptoms related to the heart Illustration showing how the blood flows in the human heart.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |