Gd night my friends !!^_^​

Identify the structure of the human heart which is a muscular chamber that pumps blood out of the heart and into the circulatory system.

Will give ! need latin ! translate the following sentences ! bellum ab romanis in (against) graecos gestum est puellae ab nautus graecos pugnare gladiis doctae sunt dona magna ab pueris pulchris puellis parvis data erunt maga regni ab regina mala amatur ( dont use translators)

There are 2,300,534 in the us what is it?