ICSE Class X Biology 2015 Papers

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

Question : 90 of 98

Marks: +1, -0

Name the parts labelled 1 to 4.

Solution:

1. Pulmonary artery

2. Aorta

3. Bicuspid/Mitral valve.

4. Aortic semi-lunar valve

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