Do you know what the heart does?
The Heart Quiz
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Cardiac output is measured as the volume of blood pushed through the aorta each minute. Which is the correct equation for cardiac output?CorrectIncorrect
What is stroke volume?CorrectIncorrect
Drag and drop to match the term with the correct units
- Stroke volume
- Heart rate
- Cardiac output
What is the role of coronary arteries?CorrectIncorrect
The left ventricle has a thicker muscle wall, why is this the case?CorrectIncorrect
How many chambers does the heart have?CorrectIncorrect
Use the following words to fill in the blanks:
Pulmonary vein, pulmonary artery, aorta, inferior vena cava, superior vena cava
Heart → rest of body Heart → lungs Lungs → heart Lower body → heart Upper body → heart
What is the part of the heart that the red arrows are pointing to?CorrectIncorrect
Which part of the heart separates the two sides?CorrectIncorrect
What are the lower chambers of the heart called?CorrectIncorrect
What are the upper chambers of the heart called?CorrectIncorrect
The pacemaker cells tell the heart when to beat. Where are they located?CorrectIncorrect
Which parts of the heart and blood vessels stop blood from flowing in the wrong direction?CorrectIncorrect
The drug called Digitalis slows the heart rate. Where does the drug come from?CorrectIncorrect
The Heart GCSE Biology
At GCSE you are expected to have an understanding of the basic anatomy and function of the heart and circulatory system. The Heart Quiz will help you to remember the most important parts of the heart.
The heart is a complex organ that is beautifully crafted to do a particular job, keep you alive and well.
The heart is the main driver of the oxygen and nutrient transport system which uses blood as a medium.
The lungs are connected to the heart by a system of blood vessels that deliver deoxygenated blood to the lungs and then oxygenated blood returns to the heart.
Diagram of the Heart
Parts of the Heart
The above image shows a diagram of the heart. The different colours are used to separate and clearly show the path of blood in different chambers of the heart. The heart has 4 chambers, the upper chambers are known as atria (atrium singular). The lower chambers are called ventricles and the chambers are labelled in a mirrored fashion, with the ones on the left being called the right atrium and right ventricle. The whole system is linked via blood vessels called arteries, veins and capillaries.
Function of the Pulmonary Veins and Arteries
Deoxygenated blood from the right ventricle is pumped, through the right atrium and through the pulmonary arteries to the lungs. Oxygen from the lungs diffuses into the blood and binds to haemoglobin whilst carbon dioxide is removed via diffusion from the blood plasma into the air. The oxygenated blood then goes back to the heart, exiting the lungs via the pulmonary veins.
Once the oxygenated blood reaches the left ventricle, it is pumped through the left atrium and then through the aorta before going around the body. The blood later returns from the lower half of the body through the inferior vena cava and from the upper body through the superior vena cava.
Once the blood reaches the right ventricle, the process starts all over again. Valves between the atria and ventricles keep the blood from flowing in the opposite direction.
We hope the Heart Quiz has been useful and entertaining. If you want to test your knowledge of the heart why not try a GCSE Science Mock Exam?
Heart Rate, Cardiac Output and Stroke Volume
Heart rate, stroke volume and cardiac output are all closely related terms that describe the functioning of the heart.
Heart rate refers to the number of times the heart beats per minute, stroke volume refers to the amount of blood that is pumped by the left ventricle of the heart per beat, and cardiac output refers to the amount of blood that is pumped by the heart per minute.
Cardiac output is calculated by multiplying the heart rate and stroke volume as below:
|Cardiac Output = Stroke Volume x Heart Rate|