Which three guides are used to position the ear accurately?

The correct answer highlights the critical anatomical landmarks that are essential for the accurate positioning of the ear in relation to the face during restorative art in mortuary science. The zygomatic arch serves as a significant point of reference for the lateral position of the ear, ensuring that it is placed in alignment with the cheekbone and maintaining the facial proportions.

The mandibular fossa is another crucial landmark, as it helps to establish the vertical positioning of the ear by acting as a reference for the jaw joint. This ensures that the ear is not only positioned correctly in three-dimensional space but also respects the natural contour and relationships of the surrounding structures.

Lastly, the external auditory meatus, which is the ear canal, is pivotal as it is directly associated with the ear's anatomical position. Positioning the ear in relation to the meatus helps to ensure that the ear appears natural and proportionate from a visual perspective.

Overall, these three guides collectively ensure that the ear is positioned accurately and aesthetically, contributing to a more life-like and naturally balanced appearance for the deceased.