4. The human heart is a muscular organ made up of cardiac muscles. It is a four- chambered organ to prevent intermixing of oxygenated and de-oxygenated blood. A thick wall muscle called septum that separates the two sides left and right of the heart. Look at the picture
Question
(i) The upper two chambers and lower
two chambers are called :
(a) Ventricles and auricles respectively
(b) Auricles and ventricles respectively
(c) Ventricles and valves respectively
(d) Arteries and veins respectively
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Class 10 science
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2021-12-19T09:04:55+00:00
2021-12-19T09:04:55+00:00 1 Answer
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Answer ( 1 )
Answer.
b) Auricles and ventricles
respectively