The Heart (OCR GCSE Biology A (Gateway Science Suite)): Quizzes
📚Quizzes
Practise the questions
13 questions from this quiz
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Practise the questions
13 questions from this quiz
How many circuits make up the double circulatory system?
How many circuits make up the double circulatory system?
Two
Which vessel carries deoxygenated blood from the heart to the lungs?
Which vessel carries deoxygenated blood from the heart to the lungs?
Pulmonary artery
Which vessel returns oxygenated blood from the lungs to the heart?
Which vessel returns oxygenated blood from the lungs to the heart?
Pulmonary vein
Why is the left ventricle wall thicker than the right ventricle wall?
Why is the left ventricle wall thicker than the right ventricle wall?
It pumps to the whole body
How many chambers does the heart have?
How many chambers does the heart have?
Four
What is the main function of the heart valves?
What is the main function of the heart valves?
Prevent backflow of blood
What is the function of the coronary arteries?
What is the function of the coronary arteries?
Supply heart muscle with oxygenated blood
Which vessel brings deoxygenated blood from the body to the heart?
Which vessel brings deoxygenated blood from the body to the heart?
Vena cava
What is the natural resting heart rate in beats per minute?
What is the natural resting heart rate in beats per minute?
Around 70
Where is the natural pacemaker located in the heart?
Where is the natural pacemaker located in the heart?
Right atrium
In which direction do arteries carry blood?
In which direction do arteries carry blood?
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 the walls of capillaries?
How thick are the walls of capillaries?
One cell thick