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 root of the nose-between the eyes-is the nasal parts of the frontal bone (forehead bone). This bone is called the ethmoid. There are then 2 nasal bones a little lower (you can feel how solid your nose is at the top-definitely bone! Not the tip, the top).