CCEA A-Level Health and Social Care 0003
Promoting Quality Care
Communication in Health, Social Care and Early Years Settings
Health and Well-Being
Safeguarding Children
Adult Service Users
Holistic Therapies
Understanding the Physiology of Health and Illness
Applied Research
Body Systems and Physiological Disorders
Providing Services
Public Health and Health Promotion
Supporting the Family
Understanding Human Behaviour
Human Nutrition and Health
Body Systems and Physiological Disorders
The heart and the cardiac cycle
- 3 things to know
- A2 2
Overview
Four chambers of the human heart, function of the septum and valve between the left atrium and the left ventricle.
What you need to know
Answer each one before you reveal it.
Which side of the heart pumps blood to the lungs, and through which vessel?
What is the function of the septum?
Questions from this subtopic
Each one with the model answer underneath.
- 1
Name the four chambers of the human heart.
Model answer
The human heart has a right atrium, a right ventricle, a left atrium and a left ventricle.
- 2
Which side of the heart pumps blood to the lungs, and through which vessel?
Model answer
The right side of the heart pumps deoxygenated blood to the lungs through the pulmonary artery.
- 3
Explain why the wall of the left ventricle is the thickest part of the heart.
Model answer
The left ventricle has the thickest muscular wall because it must generate enough pressure to drive blood all the way round the body.
- 4
What is the function of the septum?
Model answer
The septum is the muscular wall dividing the two sides of the heart, and it keeps oxygenated and deoxygenated blood from mixing.
- 5
What do the atrioventricular valves do?
Model answer
The atrioventricular valves sit between each atrium and its ventricle and stop blood being forced back into the atria when the ventricles contract.
- 6
Name the valve between the left atrium and the left ventricle.
Model answer
The bicuspid valve, also called the mitral valve, lies between the left atrium and the left ventricle.
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