Final answer:
The nares, located internally to the nostrils, are lined by the skin and coarse hairs known as vibrissae, which function to trap large airborne particulates.
Step-by-step explanation:
The nares are immediately internal to the nostrils and is lined by skin and coarse hairs called vibrissae to trap large particulates. This is the only normally visible portion of the nasal cavity. In the nasal cavity, the nares or nostrils are the external openings leading into this cavity that is separated into left and right sections by the nasal septum.
Lining the nares and the anterior sector of the nasal cavities are mucous membranes, which include sebaceous glands and hair follicles these coarse hairs or vibrissae play a crucial role in filtering and trapping large debris like dirt. The nasal cavity is also important for its respiratory functions warming and humidifying inhaled air. Moreover, it houses the olfactory epithelium, crucial for sensing odors, located deeper within.