Skip to main content

Unfortunately we don't fully support your browser. If you have the option to, please upgrade to a newer version or use Mozilla Firefox, Microsoft Edge, Google Chrome, or Safari 14 or newer. If you are unable to, and need support, please send us your feedback.

Elsevier
Publish with us
Ethmoidal Cells
Respiratory System

Ethmoidal Cells

Cellulae ethmoideae

Read more

Structure/Morphology

The ethmoidal cells (sinuses) are small air filled spaces located between the orbits within the ethmoid bone. The number of ethmoidal cells can vary from as few as 3 to as many 18 on each side of the skull. Clinically, the cells are divided into anterior and posterior groups. The two groups are separated by the basal lamella. The cells are lined by respiratory epithelium.

Complete Anatomy
The world's most advanced 3D anatomy platform
Try it for Free

Key Features/Anatomical Relations

The ethmoidal cells are connected to the middle meatus of the nasal cavity.

Function

The ethmoidal cells contribute to adding resonance to the voice and decreasing the overall weight of the skull.

List of Clinical Correlates

- Endoscopic sinus surgery

Learn more about this topic from other Elsevier products

Ethmoid Sinus

ScienceDirect image

The ethmoid sinuses consist of several small cavities called ethmoid air cells within the ethmoidal labyrinth, located below the anterior cranial fossa and between the nasal cavity and the orbit.

Explore on ScienceDirect opens in new tab/window

Complete Anatomy

The world's most advanced 3D anatomy platform

Complete Anatomy