A year of study is two semesters of study in the same or related subject area. In general, the course is about 50 minutes per day, five days a week, for two semesters. However, local school districts determine the actual organization of instructional time depending on their master schedule.
Medical Definition of middle meatus. : a curved anteroposterior passage in each nasal cavity that is situated below the middle nasal concha and extends along the entire superior border of the inferior nasal conchaâcompare inferior meatus, superior meatus.
The lower part of the nose is made up of cartilages which are responsible for the shape of external features of the nose. The nose bridge and the septal cartilage form the nasal septum.This nasal septum separates the nostrils.he attachments of your nostrils on each side to your cheeks are called alae. If your nasal septum is crooked or deviated because it grew that way, or because you suffered a nasal injury with a fracture of your nose and septum, then the outside shape of your nose may be crooked in the same way.