The Structure of the Heart (AQA A-Level Biology): 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, and where is it located in the body?
What type of organ is the heart, and where is it located in the body?
Muscular organ behind the breastbone
Why does the heart have a dual-pump system?
Why does the heart have a dual-pump system?
To prevent mixing of oxygenated and deoxygenated blood
How many chambers does the human heart contain in total?
How many chambers does the human heart contain in total?
Four chambers
What is the main characteristic of atrial walls compared to ventricular walls?
What is the main characteristic of atrial walls compared to ventricular walls?
Thin and elastic
Why does the left ventricle have the thickest muscular wall?
Why does the left ventricle have the thickest muscular wall?
It pumps blood to the entire body
What is the function of atrioventricular valves?
What is the function of atrioventricular valves?
Prevent backflow into atria
Which blood vessel is connected to the left ventricle?
Which blood vessel is connected to the left ventricle?
Aorta
What is unusual about the pulmonary vein?
What is unusual about the pulmonary vein?
It carries oxygenated blood
How does the heart muscle receive its oxygen supply?
How does the heart muscle receive its oxygen supply?
Through coronary arteries
Why are two separate pumps necessary in the heart?
Why are two separate pumps necessary in the heart?
Lung capillaries cause pressure drop