Cambridge AS & A Level Biology
8.3The heart
The heart in Cambridge AS & A Level Biology: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic20 practice questions1 lesson
Learning objectives
What the syllabus expects you to be able to do.
- 8.3.1Describe the external and internal structure of the heart.
- 8.3.2Explain the different wall thicknesses of atria and ventricles and of the left and right ventricles.
- 8.3.3Describe the cardiac cycle, relating pressure changes in systole and diastole to the valves.
- 8.3.4Explain the roles of the sinoatrial node, atrioventricular node and Purkyne tissue.
Lessons
- Full access
The mammalian heart and the cardiac cycle
45 min
Join to read every lesson, or see what Full access includes.
Sample question
A sample question on this topic. Answer it, check it, then read the worked answer.
Turn The heart into a strength.
Practise with instant marking, see your mastery grow and get a study plan built around your exam date.