Atrium is the part of face, body and building, and the atrium of face is the bottom line from eyebrow line to nose; The atrium of the body is located in the chest of the human body, on the current median line, in the gap between the flat rib and the five ribs, that is, the junction of the chest and the sword.

The face is divided into three courts. "Three courts" means that the face is vertically divided into three parts: the upper court, the atrium and the lower court. Upper court refers to hairline to eyebrow line, atrium from eyebrow line to nasal bottom line, and lower court refers to nasal bottom line to chin bottom line, with different positions.

Extended data

Atrium is an acupuncture point of human body, which is located in the chest of human body, specifically in the front midline of human body and the gap of the fifth rib. Usually, there is a quick method to select points at atrial acupoints, which is convenient for the rapid treatment of some diseases.

Atrium is a kind of architecture, such as closed central square, garden, living room, stadium and so on. In architecture, atrium refers to an open space, which is very common in architecture. It can provide more space and brightness, so many buildings adopt atrium design.