Nasal cartilages

Anatomical structures of the nose

Nasal cartilages

The nasal cartilages are a group of cartilaginous structures that provide support and shape to the nose. These cartilages are essential for the structural integrity and function of the nose, playing a crucial role in both respiration and olfaction.

Diagram of the nasal cartilages.

Anatomy

The nasal cartilages can be divided into several distinct components:

Lateral nasal cartilages

The lateral nasal cartilages are paired structures that are located on either side of the nose. They are triangular in shape and provide support to the upper part of the nose.

Greater alar cartilages

The greater alar cartilages, also known as the major alar cartilages, form the tip of the nose and the nostrils. They are responsible for the shape and contour of the nasal tip.

Greater alar cartilages.

Lesser alar cartilages

The lesser alar cartilages are small cartilaginous structures located near the greater alar cartilages. They contribute to the shape of the nostrils.

Septal cartilage

The septal cartilage is a single, flat structure that forms the anterior part of the nasal septum. It separates the two nasal cavities and provides support to the bridge of the nose.

Septal cartilage.

Function

The nasal cartilages serve several important functions:

• Structural support: They maintain the shape and structure of the nose, allowing for proper airflow and olfaction.
• Protection: The cartilages protect the underlying nasal structures from trauma.
• Flexibility: They provide flexibility to the nose, allowing it to absorb impacts and return to its original shape.

Clinical significance

The nasal cartilages are often involved in various medical conditions and surgical procedures:

Rhinoplasty

Rhinoplasty is a surgical procedure that involves the reshaping of the nasal cartilages to improve the appearance or function of the nose.

Incisions used in rhinoplasty.

Nasal fractures

Nasal fractures can involve the nasal cartilages, leading to deformities and breathing difficulties. Treatment often requires realignment and stabilization of the cartilages.

Nasal fracture treatment.

Nasal splints

Nasal splints are used post-operatively to support the nasal cartilages and maintain the desired shape of the nose.

Nasal splint in place after surgery.

Related pages

• Nasal cavity
• Nasal septum
• Rhinoplasty
• Nasal bone