An imaginary gas a perfectly obeys all gas laws is called ionic gas, perfect gas, ideal gas, inert gas

The correct answer is Ideal gas.

An imaginary gas which perfectly obeys gas laws is called as an ideal gas. It is a hypothetical gas whose molecules do not occupy any space and have no interactions among themselves.

According to the combined gas laws-

Where,  

P = Pressure of gas

V = Volume of gas  

n = Number of moles

R = Gas constant

T = Temperature

Ideal gas perfectly obeys the gas law. Thus, the correct answer to the question is Ideal gas.

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.