OrganisationVery High Exam FrequencyAQAEdexcelOCRWJEC
The Heart and Circulation
Heart structure, cardiac cycle, blood vessels, double circulation, heart rate control, and cardiovascular health
What you'll cover
- Four-chamber heart structure
- Atria and ventricle functions
- Heart valves preventing backflow
- Cardiac cycle: systole and diastole
- Double circulation: pulmonary and systemic
- Coronary arteries supplying heart muscle
- Pacemaker cells and electrical control
- Heart rate regulation by nervous system
- Effects of exercise on heart rate
- Cardiovascular disease risk factors
- Stents, bypass surgery, and heart transplants
Study this topic
1Introduction2Key Facts3Diagram4Deep Dive5Diagram6Key Facts7Deep Dive8How It Works9Definitions10Misconceptions11Memory Aid12Exam Focus13Summary14Exam Tips
The Heart: Your Body's Tireless Pump
Key Facts: Heart and Circulation
Heart Structure and Blood Flow
The Cardiac Cycle: How Your Heart Beats
Double Circulatory System
Blood Vessels: Structure and Function
Blood Pressure and Cardiovascular Health
How It Works: Why the Left Ventricle Has Thicker Walls
Key Definitions
Common Misconceptions
Memory Aids
Exam Focus
Knowledge Organiser
Exam Tips
Sample Flashcards
What is systole?
When the heart contracts and pumps blood out of the ventricles
What is diastole?
When the heart relaxes and the chambers fill with blood
Sample Questions
How many chambers does the human heart have?
Explain how the structure of an artery is related to its function.
20
exam-style questions
25
revision flashcards
Ready to revise The Heart and Circulation?
Get personalised daily study plans, adaptive quizzes, and spaced repetition flashcards.
Join Alpha