Question

what is called the upper chamber?​

Answer 1

Answer:

atria singular atrium is the correct answer

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Answer 2

Answer:

ATRIUM

Explanation:

the heart muscle is responsible for circulating blood throughout the body.The heart has four Chambers,two upper(atrium) and two lower (ventricle),with one atrium and one ventricle on both the Right and left side of the heart.An UPPER HOUSE is one of two chamber of a bicameral legislature (or one of three chambers of a tricameral legislature),the other chamber being the lower house.The house formally designated as the upper house is usually smaller and often has more restricted power than the lower house.

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