Anteroinferior refers to a location or direction that is both anterior (toward the front) and inferior (toward the bottom) in relation to a specific anatomical structure. It is often used in medical and anatomical contexts to describe the position of organs or tissues in the body. For example, the anteroinferior aspect of a structure would be the front lower part. This term helps provide precise descriptions in clinical settings.
Well posterior means back and inferior means towards the bottom so it would be pertaining to the lower front of the neck
This is probably what u are looking for but however there is a longer explanation to this which i believe u can get in another place and i wont be typing it here.The Left Lung1. It is slender and divided into superior (upper) and inferior (lower) lobes by a long deep oblique fissurewhich extends from its coastal to medial surface.2. The superior lobe has a large cardiac notch on its anterior border.3. The anteroinferior part of the superior lobe has a small tongue-like projection called the lingula.4. The inferior lobe of the left lung is larger than the superior lobe and lies inferoposterior to the oblique fissure.The Right Lung1. The right lung is shorter and wider than the left lung, because the right dome of the diaphragm is higher and the heart and pericardium bulge more to the left.2. It is divided into superior (upper), middle, and inferior (lower) lobes by horizontal and oblique fissures.3. The horizontal fissure separates the superior and middle lobes.4. The oblique fissure separates the inferior lobefrom the superior and middle lobes.5. The superior lobe is smaller than in the left lung, and the middle lobe is wedge-shaped.6. The anterior margin of the right lung is straight, whereas the margin of the left lung has a deep cardiac notch.