The following video gives a detailed description and analysis of the developing nasal cavity. Its time duration, placodes appearance, nasal process formations and many other minor details TIMELINE: 0:00 introduction 0:15 appearance of nasal placodes 0:33 olfactory pits formation 0:48 medial and lateral nasal process formation 1:21 nasal sac development 2:00 oronasal membrane formation 2:45 processes and their derivatives 3:15 model analysis of nasal cavities 4:06 final modification 4:36 conclusion