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 middle turbinate is smaller and projects downwards over the openings of the maxillary and ethmoid sinuses and act as buffers to protect the sinuses from coming into direct contact with pressurized nasal airflow most of the inhaled airflow travels between the inferior turbinate and the middle turbinate