Which acupuncture point corresponds to the lung, heart, and spleen in ear geography?

The cavum conchae is indeed the correct choice as it represents the areas associated with the lung, heart, and spleen in auricular acupuncture, or ear acupuncture. In this field, different regions of the ear map to specific organs and body parts, based on traditional Chinese medicine principles.

The cavum conchae is a significant area in the layout of the ear. It is centrally located and serves as a hub for many internal organs on the auricular map. According to traditional practices, stimulating points in this region can help harmonize the functions of the lung, heart, and spleen, making it a crucial area for treatment.

Understanding ear geography is essential in acupuncture, as it provides a visual representation of how different points correlate to bodily systems. The other options represent different anatomical structures of the ear but do not correspond to the specific organs mentioned in the question.