The diagram given alongside represents the human heart in one phase of its functional activities. Study the same and answer the questions that follows

Which part of the heart is contracting in this phase? Give a reason to support your answer.

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Solution

In the given figure, both the auricles are contracting.

The ventricles at this time are relaxing and are empty.

Therefore, the blood from the auricles passes into the ventricles easily.

In the given figure, it is evident that the semilunar valves are open, and blood is flowing from auricles to ventricles.

Thus, we can conclude that both the auricles are contracting.

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Similar questions

The diagram given below represent the human heart in one phase of its activity. Study the same and then answer the question that follows:

(a) Name the phase?
(b) which part of the heart is contracting in this phase? Give a reason to support your answer.
(c) Name the parts numbered 1 to 6
(d) What type of blood flows through the parts marked 1 and 2 respectively?
(e) How many valves are closed in this phase?

The diagram given below represents the human heart in one phase of its functions. Study the diagram carefully and answer the questions that follows.

$(i i)$ Which part of the heart is contracting in this phase? Give a reason to support your answer.