Cardiovascular & Respiratory System (AQA GCSE Biology Combined Science): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What type of organ is the heart?
What type of organ is the heart?
A muscular pump
How many chambers does the heart have?
How many chambers does the heart have?
Four chambers
Why does the left ventricle have thicker muscle walls than the right ventricle?
Why does the left ventricle have thicker muscle walls than the right ventricle?
It pumps blood throughout the whole body
Which blood vessel brings oxygen-rich blood from the lungs to the heart?
Which blood vessel brings oxygen-rich blood from the lungs to the heart?
Pulmonary vein
What is the function of valves in the heart?
What is the function of valves in the heart?
Stop blood flowing backwards
What happens immediately after the atria contract?
What happens immediately after the atria contract?
Blood is forced into the ventricles
Which direction do arteries carry blood relative to the heart?
Which direction do arteries carry blood relative to the heart?
Away from the heart
Why is the human circulatory system called a double circulation system?
Why is the human circulatory system called a double circulation system?
Blood is pumped twice per journey
If heart rate is 72 beats/min and stroke volume is 0.075 /beat, what is cardiac output?
If heart rate is 72 beats/min and stroke volume is 0.075 /beat, what is cardiac output?
5.4 /min
Where are the pacemaker cells located in the heart?
Where are the pacemaker cells located in the heart?
Right atrium