What divides the nasal cavity into left and right chambers?

The division of the nasal cavity into left and right chambers is achieved by the septum. The septum, which is primarily composed of cartilage and bone, runs vertically down the center of the nasal cavity. This structure not only provides support but also plays a vital role in airflow regulation as it separates the two nasal passages.

Understanding the anatomy of the nasal cavity is essential, especially in fields related to health and medicine, as it is integral to functions such as respiration and olfaction (the sense of smell). The septum's position allows for efficient airflow and influences how air is warmed, moistened, and filtered before entering the lungs.

The other options listed refer to different anatomical structures: the nasal bones are part of the framework of the nose, concha (or turbinates) are bony structures that help to create turbulence in the airflow, and the maxilla is a bone that forms the upper jaw and supports the upper teeth. While these structures contribute to the overall anatomy of the nasal region, they do not function to divide the nasal cavity itself.