The sequence of depositional units at a site is referred to as the siteʹs

The site is called Archaeological site. The type of artifacts and features found vary depending on the kind of site. The size of archaeological sites also varies.  Archaeological site is a place or location that contains evidence of past human activity. This evidence consists of artifacts and/or features. 

the oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. this blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. from the left ventricle, the blood passes through the aortic valve to the aorta.

deoxygenated blood leaves through the right ventricle through the pulmonary artery. from the right atrium, the blood is pumped through the tricuspid valve (or right atrioventricular valve), into the right ventricle.