Biology, asked by indulkarvaishnavi02, 8 months ago

The two auricles are demarcated externally from the ventricle by an inregular groove called ​

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Answered by riyagahlot
4

Explanation:

auricles are externally demarcated from ventrical by an irregular groove called coronary sulcus . internally the two are demarcated by an auriculoventricular septum.

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