Ala

Definition

In the context of anatomy and physiology, specifically within the chapter on the respiratory system, "ala" refers to the wing-like cartilaginous structures on either side of the nostrils. These structures are part of the external nose and play a role in supporting the nasal openings and directing airflow.

Related terms

Nasal cavity: The internal space behind the nose where inhaled air is warmed, moistened, and filtered before reaching the lungs.

Septum: The partition made of bone and cartilage that separates the left and right nasal cavities.

Turbinates: Curved bone structures inside the nasal cavity that increase its surface area for humidifying, warming, or cooling incoming air