Nasal cartilage

A flexible structure that shapes and supports the nose.

Composed primarily of hyaline cartilage, nasal cartilage provides the framework for the external nose. It is responsible for maintaining the shape of the nostrils and supporting the nasal passages. Unlike bone, cartilage is more flexible and resilient, allowing for slight movements while retaining its form.

Terminologia Anatomica

cartilago nasalis

System

Respiratory system

Function

Nasal cartilage plays an essential role in the respiratory system by not only giving the nose its shape but also serving functional purposes. Its flexibility helps facilitate breathing by allowing the nasal passages to expand during inhalation. Additionally, it supports the inner structures within the nasal cavity, playing a critical part in filtering and humidifying the air before it reaches the lungs. The structure of nasal cartilage also aids in the olfactory function, as it supports the olfactory bulbs, which are integral for the sense of smell. This functionality highlights how nasal cartilage contributes to the overall respiratory process while maintaining the structural integrity of the nose.

Location

Nasal cartilage is located at the front of the face, forming the rigid but flexible structure of the nose. It is situated at the midline of the face, directly above the oral cavity and below the forehead. The cartilage comprises several specific components: the lateral nasal cartilages, alar cartilages, and the septal cartilage. The lateral nasal cartilages are found on either side of the nose, supporting its upper portion. The alar cartilages form the tip and wings of the nostrils, while the septal cartilage forms the nasal septum, which divides the nasal cavity into two halves. Together, these components allow for both structural support and functional adaptability.

Did You Know?

Nasal cartilage can change over time, especially with age, which can lead to changes in the shape of the nose.
In some animals, such as sharks and rays, cartilage is the primary structural material instead of bone.
Nasal cartilage is modeled at an early stage of development and plays a crucial role in facial growth.