The Heart (AQA GCSE Biology): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
How many circuits make up the double circulatory system?
How many circuits make up the double circulatory system?
Two
Which blood vessel carries deoxygenated blood from the right ventricle to the lungs?
Which blood vessel carries deoxygenated blood from the right ventricle to the lungs?
Pulmonary artery
Which blood vessel carries oxygenated blood from the left ventricle to the body?
Which blood vessel carries oxygenated blood from the left ventricle to the body?
Aorta
Why is the wall of the left ventricle thicker than the right ventricle?
Why is the wall of the left ventricle thicker than the right ventricle?
It pumps blood throughout the entire body
How many chambers does the heart have?
How many chambers does the heart have?
Four
What is the main function of valves in the heart?
What is the main function of valves in the heart?
To prevent blood from flowing backwards
What is the function of coronary arteries?
What is the function of coronary arteries?
Supply heart muscle with oxygenated blood
Where in the heart is the natural pacemaker located?
Where in the heart is the natural pacemaker located?
Right atrium
What is the natural resting heart rate controlled by the pacemaker?
What is the natural resting heart rate controlled by the pacemaker?
70 beats per minute
Which direction do arteries carry blood relative to the heart?
Which direction do arteries carry blood relative to the heart?
Away from the heart
What feature do veins have to prevent backflow of blood?
What feature do veins have to prevent backflow of blood?
Valves
How thick are capillary walls?
How thick are capillary walls?
One cell thick