Näsöppningen

Näsöppningen is the Swedish term for the external openings of the nasal cavity, commonly known as the nostrils. In humans there are two n ä söppningar, one on each side of the nasal bridge, separated by the nasal septum.

Anatomy and appearance: Each näsöppning is bounded laterally by the alae nasi (the flared sides of the nose) and medially by the nasal septum. The openings lead into the nasal vestibule, which is lined with skin containing hair (vibrissae) and sebaceous and sweat glands. Deeper inside, the nasal cavity is lined with mucous membranes that warm and humidify inspired air and help filter particles.

Function: The primary role of the näsöppningar is to provide an airway for breathing. The nasal hairs and mucous membrane trap larger particles, while the mucosa warm and moisten the air before it reaches the lungs. Although smell is detected in the inner nasal cavity by the olfactory region, the nostrils are the entry point for all inhaled air.

Variation and clinical relevance: The size and shape of the näsöppningar vary among individuals. Narrowing or obstruction can occur due to anatomical factors (such as nasal valve collapse or congenital anomalies), trauma, infection, or inflammatory conditions. Such obstructions may affect airflow and breathing, sometimes necessitating medical evaluation or intervention by an ear, nose, and throat specialist.

Terminology: The term derives from näs (nose) and öppning (opening). In anatomical contexts, the English equivalent is “nostrils” or “nares.” See also nasal cavity, nasal vestibule, and nasal septum.