anterior nasal aperture
The anterior nasal aperture (also known as the piriform or pyriform aperture) is a heart- or pear-shaped opening in the skull, usually found in the skulls of humans and primates. In living characters, it is typically not visible, as it is covered by a cartilaginous nose. However, it is often commonly visible in humanoid undead characters, such as reanimated skeletons and zombies. It can also be seen on characters…
