If something exhibits all of the characteristics of life, it is considered to be
inanimate
non-living
alive
dead

just go with your heart buddy

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.

answer; the tunica intima also called tunica interna, consists of elastic fibers,connective tissue and smooth muscle cells;