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.
Anatomy. The hard palate separates the oral and nasal cavities, bordering the oral cavity superiorly and forming the roof of the mouth and the nasal cavity inferiorly forming its floor. Its bony structure is comprised of three cranial bones, the maxilla and the paired palatine bones.