Where is the aortic valve?

Between LV & aorta: It is the part of the heart between the outflow tract of the left ventricle and the beginning of the aorta.

Front door: The valve connecting the heart to the aorta --.

Heart: The aortic valve is located at the junction of the heart and the aorta. Looking down the aorta (picture) one can see the three leaflets of the valve. Below the leaflets is the left ventricular outflow tract.

Between LV and Ao: The aortic valve is a passive flap valve with three leaflets which opens as the left ventricle (LV) ejects blood into the Aorta (Ao). After ejection, the LV relaxes, and when LV pressure is lower than Ao pressure, the aortic valve flaps closed, preventing blood from leaking (regurgitating) back into the heart.

See Below: The aortic valve lies between the left ventricle and the aorta. The left ventricle contracts and sends oxygenated blood to the body, it then relaxes and the aortic valve closes to prevent the blood from returning to the heart.

A trileaflet valve : That separates left ventricle and aorta.

Left side: The aortic valve is the outflow valve and it is located on the left side of the heart. It opens to allow blood to leave the left ventricle and it closes to prevent backflow of blood into the ventricle.

The gate: Aortic valve is the main gate the front door of your mansion called the heart -- it's a specialized tissue.