What are the main functions of the nose?

The nose functions in respiration as an airway for air, olfaction for smell, protection by filtering particles, air conditioning to warm and humidify air, vocal resonance for voice quality, and nasal reflexes like sneezing.

What are the parts of the external nose?

The external nose includes the tip (lower projecting end), root or bridge (upper narrow part), dorsum (ridge between tip and root), nostrils or nares (external openings), and ala (flared sides of nostrils).

What bones and cartilages make up the skeletal framework of the nose?

The skeletal framework includes a bony part with nasal bones, frontal processes of the maxilla, and nasal process of the frontal bone, and a cartilaginous part with lateral cartilages, septal cartilage, and major alar cartilages.

Why is the nose clinically important?

The nose is clinically important for managing conditions like rhinitis and sinusitis, and for surgical procedures. ENT and plastic surgeons correct deformities and enhance aesthetics, while physicians handle respiratory diseases such as asthma.

Rhinophyma is a condition caused by hypertrophy of sebaceous glands at the apex and alae of the nose, often associated with rosacea, resulting in a bulbous, lobulated nose.

What are common nasal fractures?

Nasal fractures are among the most common facial fractures due to the nose's prominent location, typically involving the nasal bones and being highly vulnerable to trauma.

What is the difference between the external nose and nasal cavity?

The nose consists of two main parts: the external nose (the visible pyramidal structure) and the nasal cavity (the internal space). The external nose includes surface features like the tip and nostrils, while the nasal cavity houses the organ of smell and is part of the respiratory tract.

External Nose – Bony & Cartilaginous Framework

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