what is nasal

Nasal refers to the nose or the nasal cavity. It can also relate to sounds produced through the nose, such as nasal consonants and nasal vowels in language. The nasal cavity is the part of the respiratory tract that warms and humidifies the inspired air. Nasal congestion, also known as a stuffy nose, occurs when the tissues lining the inside of the nose become inflamed and produce excess mucus, making it difficult to breathe through the nose