Triceratops had large nasal passages likely for two main reasons: to enhance their sense of smell and to help regulate body temperature. The increased airflow through these passages would have allowed for better olfactory capabilities, aiding in foraging and predator detection. Additionally, the large nasal passages may have facilitated the cooling of blood as it passed through, helping the dinosaur maintain a stable internal temperature.
For heat and moisture exchange.
Clears the nasal passages, because a sneeze is caused by irritation or itchiness in your nose or nasal passages.
nostrils
No, as they have no lungs or nasal passages.
nasal septum
Nostrils are also known as nasal passages or nasal cavities.
deviated septum
Lets you smell and filters out germs
Rhinitis is inflammation in the nasal passages.
between the nasal passages and the diaphragm
the uvula
No, if there were it would be called clear nasal passages.