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B2: Quiz 9
B2: Quiz 9
1) The diagram below is of a human heart.
a) Give the names of the 4 chambers that are labelled on the above heart.
b) When blood enters the heart, does it enter into an atria or a ventricle?
2)
a) Mammals have a double circulatory system. Where do these two circulatory systems go?
b) Which side of the heart pumps blood to the lungs; the left side or the right side?
c) Which side of the heart pumps blood to the rest of the body; the left side or the right side?
3) The diagram below shows a human heart.
b) When blood enters the heart, does it enter into an atria or a ventricle?
2)
a) Mammals have a double circulatory system. Where do these two circulatory systems go?
b) Which side of the heart pumps blood to the lungs; the left side or the right side?
c) Which side of the heart pumps blood to the rest of the body; the left side or the right side?
3) The diagram below shows a human heart.
Give the names of the 4 blood vessels that are labelled on the above heart.
4)
a) How many valves are there in a human heart?
b) What role do valves play in the heart?
c) What causes blood to move through the heart?
5) Why is the wall around the left ventricle thicker than the wall around the right ventricle?
6)
a) How is blood supplied to the cardiac muscles in the walls of the heart?
b) Which blood vessel does your answer to part a come from?
7)
a) Explain how your heart rate is controlled and say where the cells that control heart rate are found.
b) Individuals can have conditions that cause their heart to beat too fast, too slow or in an irregular rhythm. What can doctors do to fix this problem? Explain how the solution solves the problem.
4)
a) How many valves are there in a human heart?
b) What role do valves play in the heart?
c) What causes blood to move through the heart?
5) Why is the wall around the left ventricle thicker than the wall around the right ventricle?
6)
a) How is blood supplied to the cardiac muscles in the walls of the heart?
b) Which blood vessel does your answer to part a come from?
7)
a) Explain how your heart rate is controlled and say where the cells that control heart rate are found.
b) Individuals can have conditions that cause their heart to beat too fast, too slow or in an irregular rhythm. What can doctors do to fix this problem? Explain how the solution solves the problem.